After masturbation, my stomach is paining and sometime bloating and then comes the ibs every month. Is it happening due to masturbation? I don't have any symptoms regarding digestive issue such as liver, kidney and other organs are normal according to usg. And I do not get blood in my stool and vomit and also don't have nausea .but still I don't want to do endoscopy. I think it's due to masturbation.. Please doctor say me. Why it's happening?