Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. Your pain is most likely to be because of acidity you are having. There is minor chance of some lung pathology you should also investigate yourself for the X ray chest PA view. This will look for any lung pathology you have. You can also think of taking strong antiacidity drugs like rabeprazole. Please take above drug under your doctors guidance. You should start doing some mild exercise daily. Than gradually you should built up to strong exercise. This will make your muscle strong. So by this way muscular pain will be controlled. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM.