We actually took him to the doctor and he had lost a little bit of weight due to not eating. He has always been a finicky eater and we have had to supplement with Pediasure on many different occasions in the past and again during this episode.
My son has been out of that environment, per doctor's orders, until we can resolve the issue through ARD meetings. We are going on almost 4 weeks of no school and my son has recovered quite a bit. He is talking more again, using that 25 word vocabulary he has, and is getting to where he tolerates things better again and is eating to where he gained his weight back. Now, we still take my 4 year old daughter to pre-k at the same school every morning and we usually take Robert with us. Something of interest is that we tell him that he is coming home with us and not going to school. He actually has sensory issues just from going up to that school, even though he stays in the car with me. And many days, it actually affects him all day long to where he will be very clingy with my wife, very impatient and have several meltdowns. Our cure now is going to just not even take him in the mornings to take my daughter to school! In all likely hood, I don't see us getting him back to school this year. I think that he is better of in a more therapeutic environment for now and then my wife, with her educator background, will work with him on school stuff and home school him in a more sensory friendly environment.