ADD or Aspergers? (5 and a half) Please tell me what you think and about your child.. thank you?

My 5 year old has symptoms of adhd. He is now in kindergarten has an IEP for his focusing difficulties and impulsivity (much less in school) His focusing issue is huge. He with a small group for a 15 minute period needs 12 reminders to stay focused. There are many things going on sensory (sometimes sensitive to loud sounds, not always) ALWAYS putting things in his mouth. He has to have gum in school or he saturates his clothing. He is very floppy, wiggly and totally distracted when he walks. He lies a lot and tells a lot of fantasy stories. When having family gatherings veers off alone,(even when he is excited about the "get together." Appears to not have much interest in children his age only older kids or adults. He usually "runs" things if he engages with the kids his age or "uses" them for things. He doesn't seem particularly interested in their ideas, thoughts.. only "can I have that toy?", "share your popsicle".. once he gets what he wants he is outta there. He is very strong willed, argumentative, and can be very oversensitive. I remember when he was 4 someone on the playground called him a "monkey" jokingly and he bawled and shut down, the look on his face was sheer pain.. this broke his heart. His eye contact is ok, but when I / or the special ed teacher tries to help him focus by getting him to look at me/ her it is very difficult for him. Otherwise he has good eye contact. I could go on and on... obsessions that don't last .. a toy he must sleep with bathe with, set at the table and two days later forgotten. Most things are his way simple things are a struggle especially if he is focused on something (usually his legos). It is very difficult to reason.. he gets angry, upset.. discipline doesn't work (time outs age appropriate) it sets him in a rage.. etc etc... anyway, what I want to know is if you have a child that has been diagnosed add / aspergers what were they like at age 5???? Also, I forgot to mention that his vocabulary is above average for his age his teachers and doctor have remarked on this. THANKS TO ALL WHO REPLY.... :)