Just as everything was shutting down due to the coronavirus, Alyssa Milano began to feel terrible.
As the star of the upcoming Who’s the Boss? reboot revealed Wednesday, during that time she had headaches, a low-grade fever, trouble keeping down food — she lost nine pounds in two weeks — and a loss of smell. Breathing was difficult, and she was confused. And yet two tests she took for COVID-19 were negative. A test she later took for virus antibodies later came back negative as well.
“After living the last 4 months with lingering symptoms like, vertigo, stomach abnormalities, irregular periods, heart palpitations, shortness of breath, zero short term memory, and general malaise, I went and got an antibody test from a blood draw (not the finger prick) from a lab,” she wrote. “I am POSITIVE for covid antibodies. I had Covid19.”
Milano included a photo of herself wearing an oxygen mask, which she said was taken April 2.
“I just want you to be aware that our testing system is flawed and we don’t know the real numbers,” wrote Milano, a frequent critic of President Donald Trump’s administration. “I also want you to know, this illness is not a hoax. I thought I was dying. It felt like I was dying. I will be donating my plasma with hopes that I might save a life.”
Alyssa Milano out and about
BEVERLY HILLS, CA - FEBRUARY 25: Actress Alyssa Milano attends The Weinstein Company's Pre-Oscar Dinner in partnership with Bvlgari and Grey Goose at Montage Beverly Hills on February 25, 2017 in Beverly Hills, California. (Photo by Dimitrios Kambouris/Getty Images for The Weinstein Company)
HOUSTON, TX - FEBRUARY 04: Actors Adrian G Alyssa Milano at the Rolling Stone Live: Houston presented by Budweiser and Mercedes-Benz on February 4, 2017 in Houston, Texas. Produced in partnership with Talent Resources Sports. (Photo by Jerritt Clark/Getty Images for Rolling Stone)
HOUSTON, TX - FEBRUARY 04: Actress/Founder of Touch by Alyssa Milano, Alyssa Milano (R) attends the Taste Of The NFL 'Party With A Purpose' at Houston University on February 4, 2017 in Houston. at University of Houston on February 4, 2017 in Houston, Texas. (Photo by Nicholas Hunt/Getty Images for Taste Of The NFL)
HOUSTON, TX - FEBRUARY 04: Former Olympic gymnast Mary Lou Retton (L) and actress Alyssa Milano arrive for the Fanatics Super Bowl Party at Ballroom at Bayou Place on February 4, 2017 in Houston, Texas. (Photo by Robin Marchant/Getty Images for Fanatics)
LOS ANGELES, CA - JANUARY 27: Actress Alyssa Milano arrives at the NHL 100 presented by GEICO Red Carpet as part of the 2017 NHL All-Star Weekend at the Microsoft Theater on January 27, 2017 in Los Angeles, California. (Photo by Leon Bennett/Getty Images)
HOUSTON, TX - FEBRUARY 03: Alyssa Milano and Jiffpom visit the SiriusXM set at Super Bowl LI Radio Row at the George R. Brown Convention Center on February 3, 2017 in Houston, Texas. (Photo by Cindy Ord/Getty Images for SiriusXM )
LOS ANGELES, CA - JANUARY 27: Kathryn Tappen, host, NBC Sports, and Alyssa Milano, entrepreneur, actress, philanthropist & founder, Touch by Alyssa Milano, speak onstage at the Women In Sports Business Panel as part of the 2017 NHL All-Star weekend at Regal Cinemas at L.A. Live on January 27, 2017 in Los Angeles, California. (Photo by Jeff Vinnick/NHLI via Getty Images)
LOS ANGELES, CA - JANUARY 08: Actress Alyssa Milano attends the 2017 Weinstein Company and Netflix Golden Globes after party on January 8, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - OCTOBER 06: David Bugliari and Alyssa Milano attend a benefit hosted by Brian Grazer for the Ghetto Film School on October 6, 2016 in Beverly Hills, California. (Photo by Tara Ziemba/Getty Images)
SANTA MONICA, CA - SEPTEMBER 22: Alyssa Milano attends Kiehl's LifeRide for Ovarian Cancer Research Event at Kiehl's Since 1851 on September 22, 2016 in Santa Monica, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - AUGUST 24: Alyssa Milano attends the Inaugural Fashion Show Benefiting Make-A-Wish with BCBGMAXAZRIA and Celebrity Host Brad Goreski at The Taglyan Complex on August 24, 2016 in Los Angeles, California. (Photo by Araya Diaz/WireImage)
NEW YORK, NY - SEPTEMBER 14: Actress Alyssa Milano is seen arriving at Marchesa fashion show during New York Fashion Week: The Shows at The Dock, Skylight at Moynihan Station on September 14, 2016 in New York City. (Photo by Gilbert Carrasquillo/GC Images)
HOLLYWOOD, CA - AUGUST 24: Actress Alyssa Milano attends the Make-A-Wish Greater Los Angeles Fashion Fundraiser at Taglyan Cultural Complex on August 24, 2016 in Hollywood, California. (Photo by David Livingston/WireImage)
NEW YORK, NY - JUNE 13: (L-R) Alyssa Milano and Judith Light attend the 2016 TrevorLive New York event at Marriott Marquis Times Square on June 13, 2016 in New York City. (Photo by Debra L Rothenberg/WireImage)
UNIVERSAL CITY, CA - MAY 04: Alyssa Milano visits 'Extra' at Universal Studios Hollywood on May 4, 2016 in Universal City, California. (Photo by Noel Vasquez/Getty Images)
DALLAS, TX - APRIL 15: UNICEF Ambassador and recipient of the 'Spirit of Compassion' award Alyssa Milano at the Children First. An Evening With UNICEF on April 15, 2016 in Dallas, Texas. (Photo by Cooper Neill/Getty Images for U.S. Fund for UNICEF)
NEW YORK, NEW YORK - APRIL 08: Actress Alyssa Milano visits 'Sway in the Morning' with Sway Calloway on Eminem's Shade 45 at the SiriusXM Studios on April 8, 2016 in New York City. (Photo by Cindy Ord/Getty Images)
NEW YORK, NEW YORK - APRIL 08: Actress Alyssa Milano attends the Variety's Power Of Women: New York 2016 at Cipriani Midtown on April 8, 2016 in New York City. (Photo by Paul Zimmerman/WireImage)
NEW YORK, NEW YORK - APRIL 07: Alyssa Milano attends at AOL Studios In New York on April 7, 2016 in New York City. (Photo by Adela Loconte/WireImage)
NEW YORK, NEW YORK - APRIL 07: Actress Alyssa Milano is seen outside 'Huff Post Live' on April 7, 2016 in New York City. (Photo by Raymond Hall/GC Images)
SAN FRANCISCO, CA - FEBRUARY 06: Actress Alyssa Milano arrives at Maxim Magazine And Bootsy Bellows Super Bowl Party 2016 at Treasure Island on February 6, 2016 in San Francisco, California (Photo by Trisha Leeper/FilmMagic)
THE VIEW - Alyssa Milano is a guest on 'The View,' airing Thursday, April 7, 2016. 'The View' airs Monday-Friday (11:00 am-12:00 pm, ET) on the ABC Television Network. (Photo by Lorenzo Bevilaqua/ABC via Getty Images) JOY BEHAR, CANDACE CAMERON BURE, WHOOPI GOLDBERG, ALYSSA MILANO, RAVEN-SYMONEÂ´, JEDEDIAH BILA
As many of the celebrities directly affected by COVID-19 have done, Milano called on others to take care of themselves by wearing a mask and social-distancing.
“I don’t want anyone to feel the way I felt,” she said.
For the latest coronavirus news and updates, follow along at https://news.yahoo.com/coronavirus. According to experts, people over 60 and those who are immunocompromised continue to be the most at risk. If you have questions, please reference the CDC’s and WHO’s resource guides.