Did it come out that colour?
Has it dried at all?
Do take her to a vet for any concerns.
Switch the routine weekly weight checks and instead make sure to weigh her daily so you can more closely monitor hay intake.
behaviour is fine, eating is fine, however she is a little hunched over, but she is 8 years old with arthritis so i see that a lot. taking her in today, the pee smells quite fishy so i’m thinking it’s a UTI. appointment in 5 hoursThat does look like blood. I would take her to the vet.
Does she behave differently at all?