Ibs? Or something else..?

I was on tri-Estrylla for about a year, then three month ago switched to Loryna, a bc with only 4 placebos rather than 7. Body reacted poorly over three months of taking new pill, so am now back to tri-Estylla and have almost finished a month of that.

At the exact same time I began taking Loryna, ibs flair up have occurred and been tormenting me all day every day,, up to today. Feeling constantly bloated, cramping, pain under my right rib cage, diarrhea every day.

I got blood work done and was told I have a dairy and gluten intolerance, and had no problems prior to these substances. I also have taken about 5 tests throughout the months, all coming back negative.

Is this my body adjusting to the altering hormones? Is this ibs? Is there a chance this is a pregnancy symptom? I have been taking my pills religiously and correctly. Please help! This bloating hurts and is constant.