I have hypothyroidism, double vision, and recently was prescribed Lipitor for high LDL and HDL. I am experiencing extreme fatigue, muscle weakness and aches, and my gait is increasingly unsteady. I now wear prism glasses which help, however, when I am fatigued it is still difficult to keep my eyes from crossing. My opthalmologist suggested I may have Myasthenia Gravis. My PCP has not been open to much discussion about the MG. My TSH scores have been on the low sife of normal as has my T3 score. Any suggestions?