Incredibly painful gas. I only took 2 pills, one on Friday, woke ...

Incredibly painful gas. I only took 2 pills, one on Friday, woke up gassy but didn't connect the two, had an unpleasant trip to the washroom. I took another dose on Saturday and woke up with more gas Sunday morning. by Sunday afternoon i was in a lot of pain shooting through my abdomen, in my back and chest. it is now Tuesday and i missed work Monday and today because the only way i can relieve the pain is by laying down. when i wake up in the morning i'm fine and then it just gets worse by the minute. i can be up for a bit but then i need to lie down again. it feels like trapped gas. i have taken pepto bismol and oval and eaten prunes and nothing seems to help. also, i haven't had a bowel movement since Saturday and i don't feel like i need to, though i'm usually like clockwork, every morning after my coffee. i called the pharmacy and they were of little help, i'm going to try a laxative today just to see if that helps move stuff if it's stuck, who knows.