MY MOM WONT LET ME TAKE MY RABBIT TO THE VET!?

my rabbit is 3 months old she is sneezing alot and the other day she threw up i know rabbits cant "throw up" but it was liike her food came completely back up. and around the outside of her eyes look alittle irritated and red. she is eating and drinking fine and using the bathroom good to. she is not very active but thats how shes always been. i am scared something is wrong with her. my mom wont let me take her to the vet and I want to so bad I am about to cry litterly because I am afraid my rabbit might die. and my mmother said if my rabbit does die she will just get another one and I dont want another one. I want to take my rabbit to the vet!!! please help!