essbee, just seen this thread. How awful for you. Hope things get moving so your son gets the attention he deserves from people who can help you both, not just fob you off with vague answers and broken promises of future appointments. I am glad you can be so open with his teacher and she takes things seriously.
Having read secondhandrose's messages, I'd hate to come across as patronising as well, but I've had a similar experience to shr with my oldest son. He was so active when he was younger, had really poor concentration and was extremely attention demanding and when he didn't get attention was very naughty (hitting people, running into things, continually shouting and fooling around in public places, climbing on anything, incessent fiddling with any gadget he found till it broke). Some (but not all) friends of mine who knew him well, were convinced he had a behavoural problem. I wondered too. He couldn't concentrate in class. His teachers at all 3 of his schools found him a real handful. If you saw him now, you'd think he was a different boy. I know children his age who have behaviour problems and my son is not like them.
I must second roisin's advice - my son responds better to rewards rather than punishments. At school, if his standard of behaviour drops, I notice the teachers start to pile on the bonus points whenever he is ok and this seems to have more of an impact on him than lots of punishments. But I am saying this knowing my son is 'normally' behaved. I don't know how it would work if he did have a behaviour problem.
Good luck with getting that help, and I hope your weekend is ok - I have work at home to do , too! shouldn't be on mumsnet really