I'm 16 turning 17 soon in April. Ever since 2010 (the first time I got admitted for inflammation in large intestine), I've been having frequent stomach problems like acid reflux and anal fissures.Got appendicitis when I was 15. Things seem to have been settle down with my problems of constipation ( or so I hope ) and now I have been having recurring problems of abdominal pain. Sometimes I would feel a sudden pierce in my stomach. Felt bloated/unwell after eating, soft stool, throat felt like there's something stuck on it and gaseous inside(stomach). I've consulted my doctor (specialist) about it and he said I have a sensitive stomach. Gave me some medicine, now my nausea is almost gone but I still feel uncomfortable with my stomach. Any idea why?