I adopted him aroud 3 weeks ago, he was an outdoor cat, only came home for food, but now he wont go out at all and is driving me bonkers at night, he races arounf the house like something demented, not surprising as he sleeps most of the day, I am trying to keep him awake more and more in the day, but honestly, its like something has possessed him come 11pm, I dont want to lock him in a room at night, do you think he will calm down eventually? And why does he not want to go out? He went out once last week, but went back to his old home naturally.