Is it OAB?

Hey,

Just wanted to see what y’all think about my situation. Since early december last year I got this constant urge to urinate I don’t need to go in detail because as everyone in here probably knows it comes out of nowhere. Anyways I went to a urologist because of it and he put me on tolterodine for 4 weeks to see if there is any effects on the bladder. He told me if there are no effects then it’s not OAB and it’s stress related. The whole thing started in 2022 and while I had similar symptoms the urgency was not constant and I was able to go 2-3 hours without feeling the need to pee so it was not bothering me as much. But this time it came back out of nowhere. and the urgency is stuck and doesn’t want to leave me alone.

I never once wake up to pee at night and usually I can sleep 9-10 hours. It’s only during the day I have this constant urgency that doesn’t go away. Sure being distracted helps it a bit but still it’s there. Whenever I drink a lot of water I go pee like gallons of water after like an hour so I try not to drink a lot of water. I can hold it for about 4 hours but that’s not the issue, it’s the urgency that’s always just there. Could this be stress related and not actual OAB? I’m male 18 if that helps and never had any injuries or anything like that. The tolterodine (4mg) hasn’t really done much at all and it’s week 2 now.