My ecg is normal but i have shortness of breath many times , i have sometime left shoulder and upper back pain teeth pain, constantly moving skin on carotid artery on right side , muscle twitches, sometime shaking in body, sometime feeling nausea,?

Constellation of Sx: You are describing a wide constellation of symptoms here and they might not all be associated. It sounds like you have been medically evaluated for this already. What did the evaluating doctor say? We won't be able to tie this diagnostically together for you. Let your doctor know if you are still having problems so s/he can determine if further workup is indicated. Take care.

Need to examine: It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Wish you good health!