The best place to go is the DSM iv. Or to call it by its full name the Diagnostic and Statistical Manual of Mental Disorders. You will be able to access via most reference libraries. There is an abridged version someone has put on the web at
So I have many strange behaviors but I've usually assumed it was my social anxiety until I came across something on the internet about Sensory Defensive
I'm a teen who was diagnosed with level 1 autism at age 13. Since I was very young I had sensory issues, they were very noticeable when I was in preschool,