depression
"I'm in the Marine Corps, and I've been on Remeron for a little over a month now for anxiety, depression and insomnia, and gained 15 lbs.  I get about 8 hrs of sleep a night.  But, if you have a job that requires you to be a certain weight I would advise you to ask the doctor for something else.  I quit taking it because of that and literally cannot sleep again because I have to "weigh in" soon.  Now I'm back to not sleeping and I literally have not eaten for 3 days just so I can make the right weight.  Wish me luck!"