Actually, it's one of the signs of depression. Some quit eating and others eat as a drug of choice. I was the drug of choice type. I got sick, began hurting myself, migraines. But "who cares, if there is chocolate cake." Besides, a migraine means 3 days that I can't think at all. The pain was better than the insanity. Weird huh?
Just learning that helped me find some healing there. I began to deal with the depression. I decided to live. I'm still fluffy, but I'm 50 lbs down (got a ways to go still), now and tough enough to get the job done. I'm meaner too.
I'm still fighting everyday, but my health and my grand-children are worth the battle. In reality, the trip I just took, I could not have done 6 years ago.