Loss of Symptoms

I'll be 16 weeks pregnant tomorrow and I am super nervous for my appointment this coming Thursday. I am scared I'm going to find out baby has passed.

No actual reason to think that other than I'm not wanting hardly any food, my diet is back to pre-pregnancy eating habits (cereal for breakfast, sometimes dinner meal or just a McDonald's burger for dinner), not on purpose tho! It's just my appetite is close to nothing again, no sickness, no cravings, my energy is back, I'm hardly going to the bathroom at all!

Also I don't even look pregnant anymore...i went from having a small belly, so just looking kind of chubby like i gained a few pounds and nothing more.

I know that some of this is normal for 2nd trimester, but it's just very worrisome and I dont want to get a broken heart on Thursday...