Okay so the last time I had sex was 3 or 4 months ago I got my period the month after but didn't for the following 2 I didn't worry much bcuz this happens to me a lo, my period is very inconsistent. But after the second month I started worrying and I suddenly got diharrea and would get hesitated very easily, and I started feeling weird , started urinating a lot and feeling my stomach blowded, seems like i gaind weight & dont really eat and it felt hard and been feeling hard ever since so figured I was pregnant. But just got my period and took a pregnancy test and came out negative but my stomach still feels hard and Idk why? Please help? What can this be?