Anxious

I’m 15w3d today and for the last few days I’ve been having so much random anxiety about this baby! I’m pretty sure I’ve felt him move a few times, but nothing for several days. I know it’s still early but for some reason this has me constantly worried that he’s still ok in there. I don’t go back to the doc until the 21st to at least hear a heart beat again and I’m almost freaking out. Anybody else dealing with this around this time?!? I’m hoping it’s just hormones?