Ds almost 7 and has sensory issues, he seems to suffer general anxiety in that he worries about blemishes on his skin, little marks etc not constant but enough ifykwim. Hes now got a cold, his voice is going its very croaky and he is full of gunk in his throat. He is really panicking about it his voice keeps dissapearing and he squeals and jumps around flapping, stamping his feet, punching the sofa etc, when he feels gunk in his throat he's screaming out starts running frantically up and down which makes it wore then lunges at me begging me to help him its horrible and frustrating to watch as hes really distressed but theres nothing wrong that he actually needs to worry about its just a cold. It dosnt help that at other times he wont sit still (cant maybe) so hes getting out of breath and its making it worse, i had to keep him off school the other day as he was up all night panicking about it and was too distressed to get ready, hes off again today for the same reason.
What do i do to help him and any ideas whats causing it?