Child Jumps, Claps, and Screams constantly?

I have a son who is 4 years old. For about 2 years now he's been jumping, clapping, and screaming all together whenever he seems to be in a loud environment. He has been potty trained easily, and can dress himself just fine. His teacher says that he is very good in his classes, and has been learning everyday. I've seen over 5 therapists, and they've seemed to all diagnose him with Sensory Processing Disorder. But his special needs teacher seems to believe it might be more than that: Tourette's Syndrome. Seeing as this constant activity as a sign of various tics. I just wanted to see if anyone else has raised a child with the same type of symptoms.

Thank You!