Antidepressants affecting symptoms

Has anyone else had problems with antidepressants? I have never felt depressed.. I mean, I of course have anxiety about where the nearest bathroom is, but never have a struggled with depression. I just moved to a new area and my GI suggested a new primary care for me to go to. I went for a general check and to get acquainted. We spoke about my history and current situation. she, then, proceeded to write me a prescription for an antidepressant. I told her no thank you, because I am not depressed! We talked about it and she talked me into "just trying it". Well, I took it for five days. I started becoming very paranoid, I was having extreme nightmares, and I kept seeing these holes in my feet that my roommates assured me weren't there. Well, over these five days I was having headaches (which I never have!) and started having extreme symptoms. I ended up meeting my GI at the hospital for an emergency scope and he admitted me for 3 days. He had me stop the medication she gave me and started me on a prednisone push every 8 hours. I am now, about two months out from that hospital stay. I am starting to taper off the prednisone now, and am continuing with humira.

I guess my question is if anyone else has had problems with medications similar that made them freak out and get sicker? Or better yet, how do I say no to a drug that I don't want or need? My focus is on keeping my UC in control.. I don't have time to "try" anything that could make me worse.

Just to give a little background: I have been living in a "flare" since I was diagnosed. Sometimes, I will go longer periods with less symptoms, but I have never ever been symptom free. I always have cramping, I haven't had solid stool in 4 years, and I go at least 4 times a day if not.. you know every other second. I normally don't bleed and I sleep fine. Those two things are what keep me hanging in there. When I start to bleed or I can't sleep a solid 6 hours without getting up, I know that I am getting to a point where I need call the Dr. (Control is an entirely different topic for me, because sometimes I can hold it and sometimes there is no way I could hold it even for a minute)