Help I'm I'm thinking

Okay so I've been having a lot of pain in my lower stomach area and been feeling fuller easier Hardly eating as much as I should be I've been having a lot of pain for the past couple weeks in my abdominal& pelvic area and a lot of back straint I've been constipated and I usually do like a poo every two weeks I've been feeling a lot of burning in my chest and my periods are off latelySo I don't know if there's anything wrong with me or not but like fuck man o just scared myself by looking up symptoms like thes and like I've been feeling bloated and shit right.