I take it you have not had time to speak with your doctor about this?
From your story it does not sound like a dangerous kind of pain
Typically sharp pain in the chest which is related to position of movement is muscle or skeletel in origin
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It is not frequent pain. Happens maybe once or twice a month at most. The pain only happens when i am sitting never standing
almost certainly musculo-skeletal
but i would make sure you see your doctor at some point, simply for your annual mammography and breast exam
have you kept up to date on this?
Caused by the position I am sitting?
Yes, keep well up to date on mammography and exams . Due to breast cancer running in the family and had to a non cancerous lump removed when I was 18
your chest wall contains breast tissue, many, many muscles (some of which run between the ribs), and these muscles or the cartilage in the ribs can become irritated and this is experienced as sharp, positional pain
can you press on a single spot when it happens and find the source of the pain
that too is reassuring that this is not something dangerous
you do not notice any changes to your breast on that side do you?
no none. I keep a sharp eye on lumps, changes etc.
THIS LINK HERE is helpful as it explains one of the possible causes of your type of chest pain. I'm not saying this is the answer to your pain, just showing you that this type of pain can easily come from muscle/bone/cartilage inflammation.
I'm glad you keep a sharp eye
have you tried motrin or any type of antiinflammatory medicine?
No, it never really lasts longer than a few minutes.
Thank you , the information has been helpful in relieving worries.