I'm wondering if one can build up a "tolerance" to a Lyrica dosage? I've been taking Lyrica for fibromyalgia for several years, and have been taking a low dosage of just 75 mg. once nightly. For over a month, now, I've been having achy joints in wrists, elbows, and feet -- along with ache behind my eyes, nervousness, and worst of all, "flu-like" feelings going throughout the body.