We've had a few people report this in the past... I don't think we ever figured out what the problem was or how to fix it :[
For some reason, you were marked as being under 13. So, I've just changed that. However that setting means you wouldn't have been able to receive PQs- you should still have been able to send them.
I've turned off and then back on your ability to send PQs, maybe that might reset it? I've also sent you a couple PQs, maybe that will change the number shown.
If those haven't worked, maybe try logging out and logging back in. Sometimes that fixes these random problems that come up.
For what it's worth, I think I figured out what the Inbox (-2) sort of error is (at least, as of this weekend), but I'd have no idea how to fix it.
Looks like the server reset also reset the PQ count. For example:
My inbox showed I had 0 new messages, but I actually had 2. Then when I checked 'em both, my inbox is showing I have -2.