Sharp pain in upper right side of chest just below my collar bone sometimes radiates down my arm and in my back and neck ... I haven t done anything new physically .... It feels like a charley horse cramp most of the time sometimes it s worse than other
Thanks for your question on Chat Doctor. I can understand your concern. Possibility of musculoskeletal pain is more in your case, but better to rule out pleurisy first. Right sided sharp chest pain can be due to pleurisy (inflammation of pleura). And pleurisy is seen in lung infection. So better to get done chest x-ray first. If chest x-ray is normal than no need to worry about pleurisy. Your pain is mostly due to musculoskeletal cause. It is not always physical exertion which causes this. But sometimes sudden, awkward movement, bad postures in sleep etc. can also cause similar symptoms. So avoid movements causing pain. Avoid bad postures in sleep. Start painkiller and muscle relaxant Chat Doctor.  Apply warm water pad on affected areas. Don't worry, you will be alright. Hope I have solved your query. Wish you good health. Thanks.