I would go in with a list of my questions. And explain that after he/she listen to my full list of complaints I would be happy to have him give his diganosis.First of all if a Dr.only allows you 15 minutes for an office call he/she is overbooking appointments. I have a Dr. Who take his time with me. He also works with my MS Dr. He sometimes will tell me yes I think you need to have that shot for shingles but first check with your neurolgist. He also will order test to see if he can find the solution to my complaints.First you must have trust in the Dr. and have good open communications or you are in the wrong Dr.'s office. Maybe just asking a close friend who they use for their Dr. might be a good place to start. I always say if you have faith in the Vet down the street then that is who you should go to. Good Luck