I know how you feel, i have been in a flare up since October 2007 and have been riding the rollercoaster of Meds since then. The prednisone made me ballon up and gain about 30lbs and still felt like crap everyday. But i get up and deal with it the best i can. I always think that there is someone who has it worse than me who has a smile on there face so why cant I have one on mine today. Dont get me wrong i still have days where feel like crap and cant move and dont want to be around anyone. But i try my best now to laugh at my situtation especailly when I am in pain. In my mind it helps. My doctors put me on Humira and i went through the first two rounds of shots and was finally feeling better then I got histoplasmosis and was in the hospital for 11days. When I got out they took me off all of my drugs due to the fact that the drugs i had to take to get rid of the histoplasmosis would interact with EVERYTHING. So here i am 7 months later still in pain and 3 days away from surgery. What really gets to me is I am just 28 years old and i feel like i am 82. I just want to feel better too. I too wanna scream and I do in my car all the time. i turn up the radio and then just AHHHHHH as silly as it sounds i feel better after i scream so maybe you could try that.
Sorry if I rambled, do you have family that can help support you? I find looking at my 9month old daughter really brightens my day and makes me want to get better if not for me for her and the future we have together. I hope that you start to feel better and get a control on your crohn's. i will pray for you and better health.
good luck and smiles