I have stomach ache and constipation have not changed my eating habits but recently have done ab roller excercise anything i can take over counter?

Chronic constipation: And abdominal pain - you need to change/ modify your eating habits. Whatever you are doing now is not working. You can certainly try dulcolax tablets, benefibers, MiraLAX (polyethylene glycol) , metamucil , acai berry cleanse or resveratrol cleanse, increase water intake 6-8 glasses of water a day , which is = to 3-4 16 ozs bottled water, increase fruits ; vegetables. If severe enough, you need to see GI specialist