Went from losing 20+ pounds in my first-second trimester not having an appetite for ANYTHING. To…

Went from losing 20+ pounds in my first-second trimester not having an appetite for ANYTHING. To wanting to eat everything i saw in the end of the second-beginning of the third trimester and now I'm in the end of the third trimester and the thought of food doesn't make me sick anymore.. I also don't want to eat everything I see anymore.. I just feel like my appetite shrunk a lot and I'll want certain things but can't eat a lot of it.. Is this normal?