Hi i had a first time sex on the 14th of January, we use withdrawal first then condoms. It was too painful for me cause it was my first time then i bleed too much. After one day, i noticed my tummy is bloatef and i kee on burping and farting.my stomach is crumbling and growling when i feel hungry and after eating. After two weeks, 224th of Jan,i had my menstruation and it was very heavy and painful under my stomach. Until now i feel bloated.i already went for a check-up and the doctor dian.i stillosed it as gastritis.please assist, as i need a second opinion