New to Me,
Welcome aboard! It's a whole new world, but the information is out there to help you make the right decisions for your child. Start reading and don't stop until your brain hurts!
My DS6 is very similar to yours. He is accelerated in all subjects and will be skipped to 4th grade next year. He is in a public school in a very small district. We don't have any designated gifted programming but the school is making it work. The extreme sensitivity you spoke of is pretty normal for GT kids, there are several good articles about OE's that will help you with that.
Interestingly the only time my DS has an issue is in Kindergarten never in his upper grade classes. It's because he thinks he knows everything K has to offer and freaks out when he makes a mistake. You might want to do a little reading on perfectionism (in your spare time) as well.
Take it slow, educate yourself and your DW. There is so much to learn and there are many people on here that can help based on personal experience and knowing where to send you for the info that you need. DYS is important just in the piece of mind that it offers, knowing that you're not alone.
Great to have another parent to kibbitz with!! LOL!!
