That is just what I feel like. Many times I got anxiety, in my case I get hypochondric and I get obsessed with the illness I believe I have. I sleep far less, perceive sounds and movements differently, talk more or faster, move around the house restlessly and sometimes I get Kind of happy but it is more a Feeling like being pulled Forwards on a string that is fixed somewhere in my stomach. I get very irritable. I also abuse more substances and do very risky things in those states. Sometimes I get very angry and aggressive with no reason. This lasts between 2 days up to 2 weeks. So this could be hypo?