I have relapsing remitting ms. I take betaseron. I gradually up the doses, now i'm up to the full strength. After i take that strength, i feel so bad afterwards. the next day is so bad for me i can hardly move. I feel like i have been beaten. How long will i feel like this or how long will it take for me to get use to the injections? Another issue, is i have injections site reactions. My thigh are all sore and my stomach is very tender, any suggestion on how to reduce the soreness of the shots.