no exercises do no cause acidity. u v some problems like late night sleep/ improper eating habits, fast foods,jink,street foods,oils ,spices at home u r using, unclear water,indigestion for temporary phase etc... so eat green salad,fruits two times 300 G/ day, low oil,spices ,no garam masala, fast ,junk etc.soft/ bland diet ,stew, soupy foods are helpful. no stress.

No exercise does not cause acidity it may be due to faulty eating habits need to know more to evaluate cause of acidity. Write me on personal chat for counseling