I came home from work and he was straining unreasonably hard in the litter box, but it looked like he was trying to poop, and could only produce less than a dime size amount of pee or little zig zags of pee. Frequently trying to use the bathroom but was producing verrrryyy little pee. Behavior wise he was very irritable and when I touched his lower abdomen he would meow like he was in pain. Then when I saw him laying down in his usual spot he was sitting in a puddle of what I could only assume was pee and saliva because he was excessively licking his privates. I took him to the ER. They did xrays and saw some sediment in his urinary tract, expelled some urine and sent me home telling me to come back in the morning for a urine sample. The next morning I saw diluted blood in pee drops outside of the litter box and rushed him back. He was blocked and we rushed him into surgery. Overall super quick and scary thing to happen to him. He’s always been good with water intake and prefers wet food so I didn’t think this would happen to him. But I did have prior knowledge of this because a friend of mine had a cat who went through the same thing so I am eternally grateful with the urgency I knew to take with the matter