My cat spent 5 days at the vet clinic (hospitalized) he had a catherer in , (for Urinary Blockage) we finally brought him home today but he is straining alot to urinate, when he finally does it is very little. He also (meows ) (cries?). He is on Antibiotics and Methigel. The vet changed his diet to a special one (Hill's prescription diet). is it normal for him to be urinating so little and with pain? Is he sore...or do you think he is having a relapse? Please reply asap, thanks so much!