Does any one have problems taking tizanidine like feeling like you are going to throw up?? I finally got to start taking this for muscle spasms or nerve spasms for rsd and I took it for the first day and felt so much better but then that evening I woke up from a dead sleep feeling like I was going to barf and took it the next day thinking I had the flu and felt waves of nausea wash over me off and on all day. But then of course thought I had stomach flu so stopped taking it. Doc said to quit taking it?? Changed gp doc and he is going thru all paperwork and getting back to me..This week I hope..