Suggest Remedy For IBS

Helo sir i dev..sir i have abdominal problem from many months.i m 26 yr male and 47 weight and single .i feel silent fever in mostly in morning daily and light pain in stomuch after meal.two time of stool sometime.i have gone to gestro docter and docter say it is 'nudcan' or' ibs' problenm. Till now it can not be solved.sir i feel mostly iritatiin in my head in morning .i feel weekness in my body.Sir use eye contact lens also due my less eyesite.i feel iritation in my eyes daily.Sir i can,t able to understand my problem and feel upset everytime due to my boby.Plz tell me if there is any other priblem like TB or else this which doing slowly damage me.Which test i should can?how can i solve it?