Sensitive stomach

I never got morning sickness, nausea yes but never actually getting sick.

My problem is my stomach is so moody lol, it’s sensitive to the max. Most of my pregnancy, I’ve had a very upset stomach that gives me diarrhea, not completely watery more running than anything. My stomach will cramp so bad and I’ll have to go to the restroom. The other part of the time, I’m severely constipated like can’t go for days. I don’t take stool softeners or laxatives because my stomach is usually upset.

Anyone experienced this? I’m 25 weeks. Before pregnancy this would happen from time to time but nowhere as bad or as frequent as now. Is it normal for our stomachs to be extra sensitive? Greasy food definitely triggers it and I’m thinking milk might too but I haven’t figured it out for sure yet. I don’t even want to eat anything because the cramping and the inconsistency bothers me so much. I never know what to eat because it’ll either constipate me or give me diarrhea with the cramping.