I have GAD and lately it has gotten so bad with negative ruminating thoughts, apathy, and panic attacks that I can't see a way to get out of it, grow and reach my goals unless I finally give into medication. However, I really do not want to gain weight. I have a fast metabolism and anxiety makes me lose appetite. I am fit and right now, probably too skinny (5'5, 106 lbs). I just want to say at 110lbs and not go up. I eat very clean, small portions, 3 times a week. 

I think my doctor will recommend citalopram but I just need to hear some stories of people who are fit and were able to keep their weight long term and not get crazy cravings. We know the first few weeks it makes you lose your appetite, but what about long term (6 months to a year?). Also, how soon if I notice weight gain can I gradually come off of it or is there any medication I can combine it with to prevent weight gain?