Tummy pains...

I am 5 weeks out and here in the last couple of mornings when I get up, my tummy is hurting alittle. It makes it worse if I eat. BUT if I do a protein shake, I am fine and the rest of the day is good and I can eat normally. Has anyone else gone through this? I do not feel like anything is blocking and I can eat later. But mornings are just not good for me. I do not feel sick or anything, just some pains. has anyone ever heard or experienced this before? Kimberly