Absolutely. As far as school we have already had our share of what you are expressing and DS is only 6. Things have improved tremendously this year thanks to a teacher that "gets it".

As far as sensitivities. YES! Overexcitabilities. Read up on it. You will be amazed. My kids, DS6 (PG) and DS4 have different sensitivities. The older was extremely sensitive to sound but seem to have grown out of it some. Or maybe just learned what he needs to do to deal. The younger has had such emotional sensitivities that has been very difficult to deal with. Seems it is getting better as well as he is getting older and understands the feelings. Still, highly intense, emotional, pretty much exhausting kids..