Constant feeling in belly

Okay so I’m curious if this is normal or not. The last couple days I have had this feeling in my stomach where i compare it to being hungry and it feels like your stomach is eating itself. I eat food but when I eat I get full fast but yet still feel hungry after somehow. It’s been real weird and idk if I just need to constantly bee snacking on food or what? Also note that I am 15 weeks.today. Is this growing pains? Has anyone else felt this kind of feeling before?? It doesn’t feel like cramping at all and no real pain just that feeling I can compare it to of being hungry?