Our expert says:
It's impossible for me to say what this may be - perhaps a muscle strain, maybe something related to indigestion, a stitch, I honestly have no idea because the description is not very clear. i don't even know what sport you play. And even with that information, the only way you can really have a proper treatment protocol is to have it diagnosed by a medical doctor who can inspect or examine you. So you need to consider making an appointment with a doctor and have this sorted out.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
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