Any cause?: Can you think of anything you've done recently that may have pulled or irritated/overworked some of the muscles in your back/left ribcage?How long has it been doing this?How often are the spasms?If going on several days with no relief with ibuprofen or naproxen and/or application of heat consider seeing your primary doctor to discuss muscle relaxing meds and/Or PT if it has been going on awhile.
Answered 10/4/2016
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