School's in session!!

School is in full swing for Robbie. Pre-school, speech therapy, occupational therapy and applied behavioral analysis. The 3 and 1/2 hour day 4 days a week are fantastic and exhausting for our 3 year old. His communication and ability to follow direction has improved- just as it had over the summer. Once again though- his stimming behaviors have increased. Robbie will continuously move and speak some language I can not understand. He will run back and forth saying "eeeeee". He is unable to sit down for any extended length of time. ( extended length being more than 1 minute) His eye contact decreases and he clenches his fists and grinds his teeth. We were told that as some behaviors improve others may take shape. As a parent I fear Robbie will be considered the weird kid. Others may not want to play with him- or at this age other parents will not want him around. (Some feel these things are contagious- like cancer.)- please hear the sarcasm. As always my hope is we figure out the root cause of these behaviors so we can help lessen them. Is he tired? Does he have a headache? A stomach ache? Is he constipated? Bored? Anxious? Nervous? At this point it's any one's guess!