I am 16 weeks pregnant and I eat almost whenever I can get my hands on food. I was a very healthy weight before I got pregnant, although I'm not sure how much I have gained since I got pregnant. I eat a lot. I crave things even though I'm not necessarily hungry, then I get so stuffed. Then an hour or 2 later I am craving something else, although I am still kind of full. Is this unhealthy?