Worried

Ok im 19 weeks and 4 days. I've been bloated everyday since I've been pregnant and I've been having heartburn alot. I go pee alot through the night also but today I didn't get heartburn and I haven't had to pee like I have been through the night. I also was feeling little kicks or those little flutters in the evenings every night and yesterday I didn't feel them. I'm now worried baby isn't ok. It's like all my symptoms went away and this is my first pregnancy. Should I be worried? I haven't changed anything in my diet or haven't done anything different. My ultrasound isn't for another 3 weeks and I just feel I cant be worried for that long.