Percocet 5/325 and pregnancy

Percocet 5 makes my sex drive very high and when they wear off i get really hungry.I had taken percocet because i had kidney stones in 08 the day before mothers day.I haven't taken them all the times since then but i feel that when i do take them i am very mean and i cant control my anger.but they help the pain very well!!I also have a shifted pelvic because of my pregnancy i had in 07.Ive been to a ciropratic and that makes the pain soo much worse and im starting physical therapy.I just cant wait to feel better.Percocet also makes my nose very itchy i don't know why.