Is it just me or does everyone else feel extremely tired after throwing up? Everytime, I feel like I…

Is it just me or does everyone else feel extremely tired after throwing up? Everytime, I feel like I need to go to sleep immediately after. also, does anyone else's nose fill up with like spit/mucus when you dry heave and can't get anything out? It bugs the heck out of me because I've never done that before this pregnancy. Also, Everytime I throw up there's always blood when I cough, no alot but still, I've never had that happen before either... is it normal? IDK....