So this is my third day of training at Walgreens. I just got here and I feel like puking my guts…

So this is my third day of training at Walgreens. I just got here and I feel like puking my guts out. I haven't had morning sickness in awhile. I feel like actual hell... What should I do? I don't want to look bad by being horribly sick and going home right away, but I don't think I'll survive today