HELP N ADVICE PLEASE little boy 2 half recently diagosis asd

Hi everyone my little boy got his formal diagnosis asd 6 weeks ago.He is now 2 half and he isnt social at all ,hates people and places and has realy bad anxiety attacks,we have started useing now n next has he is good with pictures but this isnt helping in this situation.He is under a great team of people who seem to be trying and doing their best for us ,he also has muliple sensory ,dosnt sleep he manages 3-4 hours,then chargeing about,he is also always makeing himself gag or sick .His ot says it down to sensation he seeking with the gaging and the taste been sick,does anyone elses child do this? just wondered if any one had any pointers please ?Smile