I have lost touch with reality for periods, not being able to make rational decisions, being very impulsive and unable to sit still or sleep or eat. (but no manic euphoria
) I don't have paranoid delusions, though this last time I did think there might be demons or ghosts in my house and I was very frightened. So frightened that I prayed to Jesus like I used to when I was a kid and terrified of the same things.
So no, I haven't experienced psychosis, but I have been unable to sort out what is reality and what is my disorder.
Having dealt with persons who have dementia with paranoid features, I think it likely that the feeling your friends were playing tricks on you is part of the delusions you had. All I know is my grandma regularly thinks her family is plotting against her and she refuses to believe us when we tell her otherwise. I can hardly imagine the hell that would be...