I've been taking yaz for 4 months now, and once I started my fourth pack, nausea started hitting. I'm on my third brand of BC because I get nauseous from birth controls. I've never had it like this though. I take the pill every morning at 6 am. The nausea doesnt hit until night time though. Certain smells of food make me gag now, and 2 nights ago I woke up in the middle of the night and threw up. Is it normal to get nausea at night even though I take it so early?