Transcript for Alyssa Milano opens up about battle with COVID-19
We turn now to our "Gma" story, Alyssa Milano's bout with coronavirus. She thought they was dying while suffering for months from covid-19 symptoms. Erielle reshef has the latest. Good morning. One doctor said covid-19 can be like a storm in the body. The effects can linger and now Alyssa Milano reveals her struggle with the disease. One she says has lasted for months. Actress Alyssa Milano opening up on her battle with covid-19. Writing on social media -- this was me on April 2 nd after being six for two weeks. I had never been this kind of everything hurt. She goes on to describe her initial symptoms. Loss of smell. It felt like an elephant was sitting on my chest. I could and breathe, I lost nine pounds in two weeks. We're also seeing some unique features. What I like to refer to as a heart rate that can just be very rapid and patients can be very short of breath. Reporter: Milano said she got tested twice ands the negative and the fingerprint test was negative. But after learning with vertigo, stomach abnormalities, shortness of breath, general malaise, she got a full blood draw. This time testing positive for antibodies. The star one of potentially hundreds of thousands of so-called long haulers. Like 46-year-old singer who says she's suffering long-term side effects of the disease. Of course you're afraid, it's been happening for four months it could be permanent. Because I never experienced some of the symptoms before. Reporter: In a recent survey by the CDC of nonhospitalized symptom attic adults, 35% were not back to their usual health. Covid-19 can result in prolonged illness, even among persons with milder, outpatient illness including young adults. With no or few chronic underlying medical conditions. At least about a third of my patients that I have been seeing who have recovered from covid-19 do have residual symptoms and so far in most of them they have lasted months, but most patients recover completely. Reporter: Milano says I want this is not a hoax. She says she will be donating plasma as soon as she can and doctors say there's no explanation for why some patients develop post covid syndrome or long haul syndrome. But they say if you have had covid and you're still experiencing symptoms weeks later, consult your physician. Okay, thank you so much.
This transcript has been automatically generated and may not be 100% accurate.