About 4 months ago I started taking atorvastatom 10MG once/day. I recently developed unexplained discomfort in the forearm/elbow of my dominate arm. I do not recall any incident or activity to explain this and it has lasted more than a week. Should I be looking at this as a side effect or something else? I had been doing 3/week exercises that included a triceps extensions. Since this onset it is impossible for me to perform this exercise.