What Does Pain And Swelling In The Lower Abdomen Indicate?

Hello. I am experience some pain (not sharp, not bad, kind of like a low grade cramp) on my middle to lower right side. It s almost like I feel swollen in this area. I have had this pain more and more frequently in the last year. Usually I notice it the most when I need to have a good poo . I have used milk of magnesia in the past. And usually that takes care of it. Never have experienced for this many day consistently. This time it started Fri afternoon with a just sligh stomach ache. Took some pepto n had some ginger ale. Felt well enuff to eat a grilled chz n fries ( I know-not a healthy choice-was at bar). Got home n took milk of mag-had some diarrhea type poos in am (after coffee) with a little relief. Didn t eat till about 2pm next day. No changes 1 way or the other. Had dry popcorn at fair later. Now today I feel all bloaty again. Have had several poos. Some solid-some not so much. No big turds . Don t want to eat. Stomache doesn t feel hard (sometimes it has) Tummy is very noisy-gurgling. Pain is there again on right middle abdomen-that stuffed feeling.. I do have terrible acid reflux. About a week n a half ago I got blood when I poo d. Not in it-but coming out with it. I do have hemroids -so have seen it before. And I felt fine at the time. It did do this for a few days, and this was longer than usual, but I had been eating my fiber pretty good too and I was getting those lg turds!