I just started it and the first two days it hurt my left calf muscle. So i asked my pain doc if I should keep taking them he said stop if I want but it probaly wasn't the medicine... so I said well will it hurt me nurse said no. So I decided to try it again now my left arm hurts really bad!!! It says its a serious side effect!!! What should I do I really don't wanna go back to my ibiphrophen, it does nothing for my pain I have RSD so I'm in serious pain I am also on lyrica which helps but I'm still in severe pain!!! What Should I do it do does celebrex really help? please someone tell me what to do i wanna releve my pain but is it gonna hurt me?