Tigg is right again you need to see the dr and get some tests done as this can be a real problem as I know because I have the same problem.and the drs didn't want to listen to me and they took 3 years to get it figured out and by then it was to late and they had taken out my gallbladder(hey it might be gallstones)and then had to keep taking pieces of my colon ot and now I only have inches left so please go get checked out.get well soon.
It doesn't sound good that's for sure. I think you need to get to the doctor as soon as you can. It sounds serious enough to me to cause concern. Hope this helps, good luck to you.