I am sorry to hear you are having difficulty with a med that has helped others. This is something you should definetly discuss with your dr. I have tried Lyrica and it did not produce side effects, however it didn't do much good either.
Neurontin has worked well for me and it might be worth a try if you haven't already done so. These two compounds are related. Neurontin has produced some side effects in a few people similar to what you describe.
Take care