I feel weak in the arms when my electrolytes are out of whack. Also statins can cause muscle weakness. My cousin is an auto mechanic and he stopped taking cholesterol meds almost as soon as he started taking them, he said he couldnt lift his arms to do his job.

Im finding as i age, i need to exercise in order to feel well enough. So far, thankfully its still working. I am not gonna be happy when it doesnt.