Getting stomach pain and cramps during masturbation. Is that normal?

Hello doctor,

I am a 26-year-old boy. I am suffering from stomach pain, cramps, and gastric problem. Before six years when I eat some food I got still more inflammation, pain, and cramps. The first year when I reported in the hospital I came to know that I have gastric ulcer, so I took the medication, and I got cured in about five months.

But I am severely suffering from the same kind of cramps and pains for almost six years. Now when I went to the hospital, they said everything is normal. But the thing is I did not know that masturbation or any sexual feelings may cause it and I have never discussed about my sex life to doctors.

Usually, I masturbate five to six times in a week continuously (not every week of the month). During this time I noticed whenever I do masturbation I get pains and cramps immediately after ejaculation. There are few days when I masturbate I get some relief to those pains and cramps. This is because I think I am not holding my breath while I masturbate. The problem now is my pain and cramps is still for six years. Please help me to come out of this painful life.