Hello, thanks for the query to H.C.M. Forum
Mild pain inn abdomen whether it is on the left side or right side , mostly root causes are,
Rare cause tuberculosis
In your case pain ( recurrent ) may be due to amoebic colitis so please have a treatment , anti-amoebic , for whole four week.
Get in anti worm treatment also.
Still you feel that there is pain , than require full examination physical as well blood and U/S.
Good luck. Dr. HET