Cholitis diagnose. Chronic condition!

What should i do , consulted doctors online and physically , everyone is confusing us , someone saying no issue , one said had it removed the colon , one said had thi and that , please irequest can you please help doctor what to do from here , my father had severe stomach ache which now have subsidise though but on movement pr twisting stomach muslce in an odd position cause mild pain which too get better after coming too normal position , he didnt have any loose motion , no blood no pain , motion was normal , he had vomiting though that too only once which was a very acidic vomit , what should i do from here , he is taking antibiotics , should we continue it and again had an usg done for colitis , the pain started after eating foof from outside , is it some serious version of colitis and we should have more test done , or just some normal infection of bowel that will get better with time and medicine or is it some chronic condition