Tmi health

I’ve been having some rough mornings. I am 4 months pp, idk if that matters. However I’ll wake up to my stomach and back all crampy like I need to use the bathroom. So I do. It’s very soft. Even after that my stomach and back still crampy. I feel the same way a couple hours in the morning. Sometimes I’ll even dry heave. Depending how I feel I’ll have some coffee but that’s rare now. I’ll go basically all day until dinner time without eating. Like I have no appetite in the morning or for lunch. Only eat at dinner. Before I got pregnant I didn’t eat much. So my body could be readjusting. Have you gone thru anything similar? I’m not sure what to do other then see a doctor?