blood in my guineapigs cage

Hello everyone, My guinea pig Nymeria is peeing blood. I only found out today, to my knowledge yesterday this wasn't happening. I immediately took her to an exotics vet and they took an x-ray and a pee sample. There were no bladder stones so the vet said it's possible it's either a urinary...

yetserday evening I went in just to check the guineapigs were okay and daisy was laying down beside the ramp on the top level which isn't really unusual as they do like to lay there as upstairs I use fleece bedding. Anyway she got up and moved away and there was some blood in the blanket. It...