I have to assume you are on statins (cholesterol lowering medication). Statin drugs are often associated with
side-
effects including nausea, headaches, dizziness, sleep disturbances, sexual dysfunction, fatigue, shortness of breath, memory loss, liver problems, muscle weakness, muscle pain, peripheral neuropathy and cardiomyopathy due to a depletion of Coenzyme Q10.
If you aren't taking CoQ10, start immediately.