I've been having constipation issues most of my life but after having fistula surgery it became so much worse. Stomach bloating, gas pains, cramping. All the classic IBS symptoms. My body works normally for a few weeks and then shuts down so I can't get a handle on what is happening. Too much fiber or not enough. The pain is worse at night or early morning. I drink alot of water, exercise, and just started the Fodmap diet.Has anyone had these types of problems after fistula surgery? Or with constipation? Thank you for any help or advice.