Feeling terrible

Doctor's appt tomorrow, definitely bringing all this up. What are the worse pregnancy symptoms you all have occured. Recently I've been dizzy a lot, like to where I can't stand or walk. I've fainted while throwing up but only for a few seconds. I was also already sitting so no major damage. Didn't hit anything just ended laying down. I'm also vomiting like crazy. I am on progesterone and I'm hoping that's the culprit because I get off of them tomorrow. I just want everything to be okay. I feel like all the vomiting isn't allowing nutrients to get to my baby. I'm 11 weeks 4 days. Any advice? How do you feel?