"What?" She didn't know? Calvin blinked at Kitty and her question. Clearly she did not get the memo here. Huh, he would have thought that Xavier would have made them all aware. It was in his file and clear as day. Maybe the old man didn't tell them everything? That was spooky. "I have Bi Polar disorder." He frowned then and chewed on his bottom lip while he waited on her reaction. It still a very new thing for him and not something he cared to have blasted all over the school. "I was diagnosed about a year ago. I think it might be a side effect of my mutation." Cal offered with a small shrug. It was just a theory and not even tested. Who knows how the mind works the way it does? He couldn't even pass Psychology class back in the day. That professor was hard!