Sorry to hear you've been in pain all this time. This certainly needs attention! It's been over 20 days since the implant. You shouldn't be feeling pain this severe and you're having trouble breathing! Mark is right, you should probably let your referring Dr, or pain specialist know about this. Also, keep trying to reach your surgeon.
I'd hate to see you end up in ER if no one is taking you seriously.

Couple of Q's: Are you in this pain even when the SCS is off? Does the pain feel like it's on the surface, or is it more of a deep tissue?

One of your leads might have migrated or something. Hopefully they'll check via fluoroscopy to see what's going on in there

I hope they get back to you soon!

Rae