Hi I am bipolar with some OCD tendencies, not bad but when I get obsessive I get obsessive. I have a recurring as in about once a year obsession about wanting to gain weight. What is weird is that I am usually obsessive about being healthy and very lean as in bodybuilder lean. I am a personal trainer, have done some modeling etc. I usually abhore body fat on myself and anyone else but occasionally I just want to gain like 30 to 50 lbs....why why why? Any ideas? anyone else ever experience this? 40 to 50 lbs on me would just put me in the "obese" category. The most I've let this obsession go is about 20 lbs before I snap back to my senses and lean out.