I have an autism spectrum disorder, the primary symptom being sensory processing issues. Noises are horrible. You know I can hear electricity? Yeah. When I go to places like the desert, it freaks me out cause the sound isnt there. And textures.. oh yeah, that's an awful one. I'd pay attention to that. It took me twenty years before I figured out that most people do not experience constant pain from any and all physical sensation. It never occurred to me that it was abnormal, cause its all i'd ever experienced, so I never mentioned it.
As for dogs... Dogs are strong, they are hard to predict, they are often very "in-your-face." What most people see as playful, we see as aggression. it feels that way. But of course, I know its not. its the confusion, the fear and apprhension of what it *could* be that gets to me. The barking doesnt help things, but im terrified of even small quiet dogs that come anywhere near me.
remember, people with sensory and autism spectrum disorders do not like to be touched. dogs like to do the touching thing without asking first. Its very rude.
In any event, you shouldn't worry too much. Like I said, I have such a disorder and, more or less, am doing fine. Its not the end of the world, is what im saying. Infact, very few of us even consider it a problem that needs to be fixed, more just part of who we are. Everyone has things they're good at and things they arent... So as long as he's intelligent, all such a disorder really does is give him a different set of good and bad things than most people have.
Sorry, that was probably all really long and rambly. I totally blame the autism spectrum for that. Im pretty sure my point is somewhere in all that, though I'm not entirely sure where.