Sometimes I studder. I tend to studder more when I am manic, but it can happen at any time. It also happens when I am nervous. The medicine risperdal had made my studdering a lot worse. So, it could just be him. It could be his medicines if he takes any. It could be mania.

I tend to say huh a lot too. The schizophrenia part my schizoaffective disorder causes my mind to be foggy and scrambled up. Sometimes I say things that make no sense. Sometimes I have a hard time understanding other people because of my mind. It is like a dense jungle. It is very hard to find my way around. Medicines can also do this. It is a combination of the schizoaffective disorder and the medicine. Ansipsychotics sometimes slow people down and slow their reaction times. This stuff may be what is happening to him. Just be slow and take your time when you talk to him. Be sure to give him a bit of time to respond. That will definitely help him out.

As for being more sexual lately, it could be mania, like fluffybunniezz said.

I hope that this helps you.