to flap my hands or not to flap, that is the question

Through all of Alden's journey I have been able to excuse away autism by crossing off some of the tell-tale signs such as hand flapping.  However in the last few days he's started what I thought was waving, but he's doing it more and more.  I'm struggling with what to do next.  Emotions are running high in our house as we deal with autism, 2 sick kids, moving and some other family matters.  Trying to stay strong and turning to God to carry us through.  As always and prayers and suggestions are welcome