'80s pop star Debbie Gibson is responding to criticism over her skinny stature. Gibson looked very thin in an Instagram photo she posted a couple of weeks ago, sparking rumors and speculation. But the singer explains that she's lost a lot of weight because she's battling Lyme disease.

Gibson says, "I feel compelled to address a health-related issue I have been dealing with. Last year, I was diagnosed with Lyme disease. It is an elusive disease that disguises itself as many other things and creates a lot of pain and discomfort along the way." The 43-year-old says the disease has affected her diet and for a long time she wasn't able to eat certain foods. She became gaunt and very sick but is finally undergoing treatment and is improving. (NY Daily News)

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