Thanks for the follow-up.
I understand your concern.
As per your description,possible differential diagnosis may include Gastritis,Intercostal muscle strain,Renal colic,Ischemic heart disease.
You should take OTC Advil and Zantac.
Also do gentle massage with topical diclofenac sodium ointment on affected site along with warm compresses.
OTC Aspirin can be taken.
You should monitor your blood pressure also.
You should maintain a good hydration with plenty of fluids.
If your symptoms'll not show any improvement then visit ER or see your doctor ASAP.
Feel free for further queries. It's good to discuss rather than quit.
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