Hi there Kim
The difference between ultram and ultracet is that ultracet has acetaminophen in it and ultram doesn't.
With ultram the usual dose is 50mg. per pill but in ultracet the mg. is less which makes it less potent.
Depending on what your doc has Rx you med. for if you are going to be on it for any length of time then the ultram is better so your liver isn't getting bowled over with acetaminophen. If you are only going to be on it for a short period of time then maybe the ultracet would be better and maybe since the mg. per pill is less that may help with getting your headaches from it. If you continue to get headaches from it maybe you and your doc should talk about another med.
Take care and i hope you feel better!