I remember my long one I felt really powerful and wise. I was actually doing really well at school at that time, so I guess you could say I was high functioning. I didn't feel anything was wrong with me. Everything was logical to me, made sense. Mood-wise I was good. I thought my depression was gone. But, I was having other random issues I remember like this black outs where I would go into a fog. My cousin stayed with me for 2 weeks at one point because I would just forget. My dad didn't believe it was happening, we had a huge fight over that. I don't know if that was part of the psychosis, though.
My more recent things... I feel about the same, actually. When I start to be paranoid I feel all the dots connect and everything is logical and makes sense. I try to reality check, but it's hard. This time I don't have anyone "playing along," and my husband is extremely blunt about when I go down roads that are paranoid and them not being true things. But, I feel like if a big one comes along again I could easily not even know it's happening, especially if I keep it to myself.