My daughter is 13 yrs old, about 55, and approximately 100 lbs.  She has daily chest area spasms, some of the spasms are so painful, she has to stop what she is doing and just cringe until it stops.  We have seen a doctor about these symptoms, was told could be tears in her chest muscles which cause extreme pain at times.  Nothing can be done about it. My daughter has these chest or lower rib pain, or spasms, daily, and now complains of back ache.  I, her mother have just noticed, the middle of her back, she has what appears to be her spine, but three bumps sticking out.  Is this her spine, or something else related to her outgoing chest spasms?
Hello dear, Thank you for your question. In my opinion the bumps you have noticed, might seem more evident because of her specific body structure. The BMI (Body Mass Index) is within normal range, which is a sign of good development. The back pain may come from the forced posture that she applies in order to minimize the pain from the muscle spams. I hope this helped. Best wishes,