DS2(7, suspected aspergers) has been getting more twitchy over the last week or two-eg. tongue rolling "popping" with his lips and various finger twiddling, foot swinging and zip fiddling. He has complained about the compulsion to "pop" distresing him. The last few weeks of school have been better than normal, his teacher is finally getting him, and we have been on half-term this week. He does it most when watching telly. His sleep has also been disturbed again after a good spell. Is he just tired and stressed, needing more exercise or fish oils? I'm worried because I know he is at greater risk of Tourettes and has already been to CAMHs about OCD last summer(which resolved itself). I hate that a new worry always emerges just when I have reached a calm plateau in parenting my challenging children (well, one of the three is NT but models a lot of his behaviour on his older brothers!). Sorry for the long post, any advice welcome.