Ultracet for back pain, made the pain diminish, but Oh, brother--...

Ultracet for back pain, made the pain diminish, but Oh, brother--what side effects! I experienced extreme Nausea and dizziness unlike I've had with any other medicine other than codeine. I am allergice to codeine and asked the Dr. if Ultracet contained codeine and he assured me it did not--but I am wondering, because I am having the same symptoms with Ultracet as I would with Codeine. It is nearly impossible to drive or work while on the stuff, as it makes you feel like you are having severe Motion sickness all the time. If anyone has the opportunity, please tell your Dr. 'NO ULTRACET'.