This is a good question and I'm seeing myself a bit in the answers. I think I get argumentative but in the spirit of exchanging ideas. I feel very clever and I'm pretty impressed by how clever I am. I try to stay grounded but I can't because the clever thoughts keep catching up to me first. Usually the first thing I notice is my sleep is off....the rest changes from episode to episode but energy is always high and thoughts are rapid and inconsistent. My early warning signs usually start with someone saying "you seem excited" or something along those lines.