Hunger headache

So I'm 15 weeks this friday(2 days from now).. So a couple of times when I was sleeping and just super tired and I woke up to use the bathroom.. Instead of eating, I went back to sleep.. I pushed past the hunger.. Now when I get hungry I don't really feel hungry.. I just start getting a really bad headache which I know is a hunger headache.. Is this gonna stay like this or will I go back in a few days? Like i barely feel hungry but I know I am because of the headache.. I feel bad but I was so tired!!