ADD Husband hates to be touched

My ADD husband hates to be touched (except for sex!). He will cry out if I happen to touch him while asleep, like from turning over in bed, and this wakes me up. We can't get a bigger bed. Is he so sensitive because he has ADD? Has any one else run into this, and if so, how did they solve it? I sleep as far over on "my" side as I can, but it's hard to sleep without touching him.