Sebastian has blood in his urine and I’m unsure what the cause could be. He’s about 9-12 months old and he’s never had blood in his urine before. Some of it had this grainy sand like stuff in it. He is NOT showing signs of straining when he pews inside or outside. He’s still a happy cat as far as I can tell but I have no idea what could cause this. We don’t have any money so we can’t take him to the vet but I will give her a call tomorrow. I’m extremely worried because we have two other cats. And blood is always a sign. Please give me advise.