Thanks for the query to H.C.M. Forum.
As you describe in your query that there is 4 times bowel movements in week , that too depending upon the diet you take .
In my opinion this is the regular habit , rather good habit of intestine.
As far as concerned about pain in the stomach and excessive wind passing .
The stomach pain may be due to overeating or hyper acidity . Take antacid
but if pain is severe in stomach you may need proton pump
inhibitors . Avoid greasy , spicy ,junk foods, drinks in caffeine in them or chocolates.
2nd reason of bloating
may be indigestion
so take some enzyme preparation .
In my opinion there is no need of any tests.
Good luck. Dr. HET