If you take them together why do you point out cross tolerance? Tolerance to lyrica's first effects grow very fast, a bit like with methylphenidate, you'll never get the same effects as for the first time. I think you're growing tolerant to both of them. After the first two weeks/month of benzos dotcors usually dubble the dose and keep it at that for a year or something. Talk to your doctor, he'll know what to do.