So I'm 20 weeks and still throw up all the time, but I got a job last week. Yesterday I was feeling nauseous all day and threw up a couple of times but I had to work at night so I tried to suck it up.. Like 40 minutes into the shift out of nowhere I got really dizzy and light headed, my forehead started to sweat, everything got quiet and dark and I completely blacked out and fell over. A few seconds later I got hit with crazy nausea and threw up for 20 minutes. The throwing up part wasn't a surprise but I've never gotten dizzy and blacked out like that? I don't know what caused it? Has this happened to any of you?