My son who is 2 year 5 months started preschool 3 months ago .He speaks indian language at home.He is totally opposite of what he was at school.At home he is defiant , naughty and loves sitting without moving when I read books and keeps on asking please read one more book, loves doing jigsaw puzzles if I sit with him,can play with cars ,trucks,construction vehicles for any amount of time without me being there and narrates his play .He has very good memory and relates and interprets very good. He is very oral at home too.He keeps everything in his mouth but never swallow even a small piece.If we say not to do something he likes to do that but neither agressive or wild. He goes 2 days a week for 2.5 hrs.He doesnt sit in the music. sits for sometime and runs in the middle to press piano keys or goes near chairs at the corner of room and sees wether teacher comes to take him back to circle.He has the habit of running to the hallway of school sometimes or not going in line but checks wether teacher is coming to get him.He climbs on blocks table and when the teacher says no he doesnt listen. He keeps everything in his mouth at school.While in the music initially he used to observe a lot but he got better and imitates what they are doing but not as much as other kids.The teacher says he needs constant redirection and does not follow directions; unless, they are holding his hand, and he is receiving one-on-one direction and supervision , prefer to play alone, does not engage with interactive eye contact with teachers and others.He is not exposed to english sentences before going to school or neither understands them but he knows words. He has movement patterns such as running and walking on tippy toes not all the time, or flapping movements while running.She says he has difficulty with modeling behavior, modeling play, or pretend imaginary play and does not appear to be interested or seem to grasp any part of it.But at home he does pretend.He socalizes very well with adults plays with them if somebody comes over.He didnt have much opportunities to play with peers So I am not sure about that part. I got him evaluated from the govt, and they also got him observed with a parent teacher consultant who came to class and observed him.They said he is not having stimulation and his english is not on par with other kids( all are english speaking kids) and they dont expect a kid to sit if he is not understanding language.Some kids do sit if they are not understanding becausce they have fear and my son is fearless.He is not having the support of me saying the sentences in our language while reading books. They disagree with them and thinks he is having sensory issues and strongly think an outside occupational therapist should come and see him in the class. I have checked the checklist and noticed he keeps thing in mouth,does have little bit texture problems but can swallow and chew ,he cries for haircut,brushing little battle I didnt see any major things. I contacted an occupational therapist over phone .She said we all have some types of sensory preferences .But the frequency, intensity, duration and functional impact of these symptoms determines dysfunction.How much it is interrupting your occupation, or developmental skills or everyday functioning then only it is called disorder .She said its like a pie whole lot of things go into it.Its not just exhibiting few characteristics.It is very hard to diagnosis.Sometimes misdiagnosis happens or if instruments are not used properly it will have negative effects. she said some characteristics of SPD are observed in children but they may not have SPD.Level of sensitivity matters. She is insisting to talk with pediatrician first and if needed if u want peace of mind u can come for second opinion .I am planning to take him to pedaitrician. Please pour in ur experiences and suggestions.