I have fibromyalgia and have been on almost any pain med you can think of in the past 8 years or so. A month ago I was given darvecet and I broke out in a rash. The doctor then had me take Ultracet, same reaction. Finally,I was given Ultram, and I am now a itchy, rashy mess. I don't know what to do, my doctor seems unconcerned. Also I have had two episodes of sweating, shaking and vomitting. I can't tell if all this is connected, and I don't know if Ultram is the problem. Help!!!