Not sure if this means anything

FTM here...32 weeksand 2days...for the last 1.5 weeks, my stomach has been so upset. I start the day off ok but as it goes on, I'm finding it difficult to eat bc no matter what I try to eat makes me so gassy and results in diarrhea. Also, my back kills me by the end of the day. I keep getting lower side cramps like on the lower and almost underside of my belly. Doesn't last very long but feels like a side stitch. And fetal movement has greatly increased to the point where it makes me feel nauseous and borderline on the verge of tears bc she kicks so hard it hurts. I'm 5 feet tall so idk if it's my size or what...but I'm starting to worry about this and idk if it's normal. 😩 no idea how to deal w this for another 8 weeks.