Hello! I've got a 9 yr. old Bichon Frise and all of a sudden he's been asking to go to the bathroom every ten minutes, literally. I'm wondering why...I know Bichon's have a fairly high risk to bladder infections--can i collect a urine sample and find if he has any crystals myself? Or is that something the vet can do through only a centrifuge? Thanks so much for the help!!!