lol.... pokemon hunting. My sister plays Pokemon Go all the time.
But yeah, sleeping pills don't work for me either. Well, I tried them once when I couldn't sleep and I stayed up for 3 days straight. I felt more activated by them. Who knows if I was hypo/manic, though. This was before I was diagnosed.
I know I'm tired when I feel it in the back of my head. I know that sounds so weird, but the back of my head feels like it has a weight on it that's dragging it down. It's a physical symptom I tend to get.
Sometimes my eyes feel dried out as well, but that's not necessarily an indicator for tiredness. But when combined with the other symptom I get, I definitely know I need to sleep.
I don't know if anyone else has the weight in the back of the head thing, but I'd be interested in knowing.