I masturbate many times and have a testicular pain in the epididymis and pain in the lower abdomen i may have epididymitis. did masturbation cause epididymitis? the doctor can see that i have masturbated many times?

No, it is less likely related. You should see your doctor for the right diagnosis and treatment.

Self-diagnosis is dangerous and mostly wrong. The doctor would not be able to tell if you masturbated. Masturbation does not cause epididymitis. . Try masturbating less, wear a support underwear and use local heat 2-3 times a day. If not better see a Urologist