I had a son with Tourette. Reading your post brought back so many memories, this one in particular. My son used to smell absolutely everything before he would put it in his mouth. He also, couldn't help himself to stop. I think there's a strong possibility of Tourette. I haven't told anyone but I have a lot of experience when it comes to raising a child with Tourette's Syndrome. Please don't hesitate to drop me a note or message if you want to ask something
Oh, I feel for you. I was just reading on another site, NOT to tell them to stop because they can't! My 11 yr old son has had tics for years. His latest one is SOO annoying because he is constantly squeaking!! The more we tell him to stop, the more he squeeks. I wish I KNEW what to do!!