I hear you about the anxiety - this is something our DD10 is also dealing with. Her anxiety is around different things, but certain subjects at school also trigger it. Is your son anxious in other areas? If so, therapy may be a good idea.
Our DD also is/was reluctant to talk to a therapist- she prefers to discuss her worries with only myself and her dad, and feels embarrassed to have anybody else know about it. She was mad at me when I told her teachers about her anxiety - but really there's no choice there, they needed to know what was going on. I told her teachers that she didn't want anyone to know about it and they've been very good accommodating that.
When I told her about the therapist we are seeing now, I said that mom and dad needed help to know how to help her with her anxiety. I think that made sense to her.
Here are also a couple of links I found about how to talk to your child about therapy. Maybe something useful in there for you...
http://psychcentral.com/blog/archiv...esnt-want-to-go-to-therapy-but-needs-to/http://www.hvcct.com/new/?q=prepare
