Thanks Lynn and natensarah.
Ds definitely has sensory issues. Clothing, smells, food, etc can be a real struggle with him. He also doesn't really 'get' body language or personal space. That makes it hard for himto connect with other children. I have read alot (including the outof sync child) and have found some great things to help. He is also on a constitutional homeopathic remedy that seems to be helping as well, although it is subtle. The gluten and to a lesser extent, the dairy being removed has helped as well.
He seems to be hypersenstive as well as hyposensitive. He certainly does crave strong touch and lots of sensory activities like dirt (yay, summer!) and popsicles (well, who doesn't like popsicles). But there was a time when a drop of wetness on his clothes would make him just strip, no matter what. I am happy to say that he has moved past that one. Homeopathy has been wonderful.
He is a wonderfully unique and brilliant child. I am grateful to him for teaching me so much.
I was certain that something would come up when he began attending public preschool (a therapist that came to his last small montesorri school asked me to call her to discuss his 'toe walking'-but I didn't call), but there has been no issues and he is involved and happy there.
Things are getting better and better with him as he makes progress. I am glad to hear that theses things (in the OP) are relatively normal and not a sign of serious deviation.
I should tone down the overblown emotional response, as that is obviously not getting through to him and is probably my thing, not his, KWIM?
We will just keep working with him and helping him learn ways to cope.
Thanks for everyone's replies.