Hi my 15 year old cat has dementia he is also diabetic but his levels are good. He cries a lot of the night roaming the house. He’s obsessed with water even though his glucose is good. He paces waiting for me while I give him fresh water. He urinates outside the box with all the water he drinks. The howling at night is hard to listen to. I give him food fresh water treats and right after that he's looking up at me meowing like he wants me to do something for him. I'm at my wits end. He's been tested for everything there's nothing physically wrong with him. his ears are in airplane mode and his fur stands on end even when he's sleeping. He's taking gabapentin I don't know if he'd be worse without it. The dr told me to weigh his quality of life. But I don't know how I could bring myself to have him put to sleep especially since there's nothing wrong physically with him. I hand fed him when he was 4 weeks old. He such a gentle cat. Any advise would be appreciated.