I have had open brain surgery, for an aneurysm, and for me, also having MS, sensory overload - whether it was noise, lots of movement, colour, or iinformation just about caused me to shut down completely and curl up in the foetal position.

It is still that way to quite some degree - mostly from MS and information overload. Only now I am aware of what is going on - and I take all measures I can to prevent it. I don't shop when I am tired (if I can avoid it - shopping centres undo me, with all the people moving, the products and bright merchandising), if I am feeling unwell, I totally avoid crowded areas.

I teach older people - teenagers and adults, but my friends who teach kids say that you should try talking to them only in 'stage whispers' - they will have to concentrate harder to hear what you are saying (and kids hate to think they are missing out on anything - especially if it is a secret) - I can't guarantee it, but it might be worth a try???? I know that if your tone and volume go up, so will theirs.