Hi M&m great to see you here

although we didnt get a dx of TS for my son till he was 10, yet I realise now that many of the things that were happening almost since birth (as an infant he made continuous clucking sounds) were actually manifestations of his TS.
Although my son disnt exhibit all of what you describe, still he did show quite a lot of similar "tics" and behaviours from a young age.

As I know next to nothing about PDD-NOS I cant address that aspect of your question, but I am sure there will be someone here or on the other forums here who may be able to shed some light