Avril Lavigne on Her Struggle With Lyme Disease

The rocker reveals she's been battling the crippling disease for months.
4:17 | 04/01/15

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Transcript for Avril Lavigne on Her Struggle With Lyme Disease
She had a revelation that she's been struggling with Lyme disease. A five-month battle after being bedridden. Sometimes she can't even talk or more and Paula Faris has her story. ? Make things so complicated ? Reporter: This morning rock star Avril Lavigne opening up about recent health complications revealing she's been diagnosed with Lyme disease. Contracted from a tick bite. Levine says she began feeling ill last April. Doctors telling her she was likely dehigh dayed and exhausted from touring. But she says she knew it was something more. Her symptoms worsening over the months telling "People" magazine I had to fight. I had doctors tell me I was crazy and they didn't want to test me. I had to learn about it completely on my own. She's rarely left her home. She said that she's been unable to breathe at times. It's hard for Herta stand. She's barely able to brush her teeth. ? Reporter: At first Levine kept her diagnosis from the public eisaiing I never had depression but being sick and being so terrified that in itself is depressing. I was squared for my life. ? Everything wasn't okay ? Reporter: In December, the 30-year-old multiplatinum artist breaking her silence sending a direct message to a fan on Twitter that went viral writing "I'm not feeling well. I'm having some health issues so please keep me in your prayers." Her fans doing just that. Raising her spirits. Since her diagnosis, Levine has completely changed her diet and exercise routine cutting out sugar, dairy and gluten doing yoga, meditating and trying to swim or walk every day. Estimating she's about 80% recovered. ? now the rocker is holding on saying she is grateful for the worst thing she's had to face so far saying "I have never been more clear about what I want in my life, health, family, love and happiness." For "Good morning America," Paula Faris, ABC news, New York. Thanks to Paula for that. Rich Besser here now and, boy, you can't emphasize it enough. You have to catch that bite early. It is so important. You think it bites you and get the infection. You actually have 36 hours from the time it bites you to remove it before you get sick but the key thing is finding that tick so let me show you something. It's not easy to do. I've got three types of seeds here. This is a sunflower seed. That's about the size of a dog tick. That's what people think about. This little one is a ses pi seed. That's an adult deer tick but it's mainly from these little poppy seeds. The baby deer ticks which are so hard to see. If you see the bull's-eye it's too late. It's not too late. Look for the bull's-eye rash. Rash that starts with a tick bite so you'll see it in about 0% and gets larger, larger and larger circle. You have about a month to give antibiotics during that early period to prevent some of the worsening problems. We saw Avril Lavigne believes changing her diet and exclusive helped her. Well, you know, I'm glad that worked for her. Those are things that are good for everybody, eating right, meditation is good, exercise but it's that antibiotic treatment. If you get antibiotic treatment during that first month, you know, something like 0%, 90% will not have progression to some of the other Sims. Rich, what else should people be looking out for so they don't end up suffering. Looking for the telltale bull's-eye rash. The other estimates that develop after that can look like flu-like illness, headache, muscle aches and swelling of your glands. If you don't get treated then you'll get true arthritis, swelling of your joints and pain, neurologic findings like meningitis or facial weakness, those you can see with that and have racing of the heart and can affect your heart muscle. Want to wear long pants, long sleeves and do what to try to prevent this. Lyme disease is primarily in the northeast, midwest but can you see it in other places and other diseases from ticks so tick prevention is key. Out in the woods, long sleeves help, using a reel Pell lent that has 20% deet. Walk in the middle of the trail but when you get home shower, bathe and do the tick check on your pets. Next up on our "Gma heat index," adult bullying.

This transcript has been automatically generated and may not be 100% accurate.

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