I have been experiencing left under arm pain for the last two months. It usually comes in the evening and goes off by itself. It's precisely in the lower arm. Not radiating to upper arm or neck. No chest pain. I checked up with my doctor. He did ECG. It was normal. However blood checkup showed high cholesterol. Total cholesterol was 230. HDL was 39. My BP was 130/90. He gave some pain killers for a week. He has asked me to do some exercises and follow balanced diet and asked to come after a month. It was okay for a week. Now again the pain started. It's bearable. I can feel it but do all activities. What to do? I'm more worried now.