Welcome to NT! I'm so glad you've found our wonderful little SCS forum.
It amazes me how many patients are getting these units nowadays!

I'm so sorry to hear of your accident. It was just one week ago, correct?
Did the rest of your body suffer much trauma from the accident? Such as whiplash, broken bones, cerebral, concusion ?

I'm glad to hear that you've been getting along real well with your implant with the exception of having a recent revision....but that's to be expected as the leads scar in to place. Growing scar tissue can move the leads in very subtle ways, which can change the stimulation, thus one of the reasons for getting 'tweeked' or revisions.
Lead migration is another reason for getting revisions (as you are aware).
I'm guessing you've had the percutaneous leads (under the skin) placed rather than the laminectomy (where they remove a piece of bone from your spine to put paddle leads in)? Reason I ask is because the paddle leads tend to be more secure and less likely to move.....however, a car accident can sure do a number on a person.

Is your implant for cervical or lumbar?
What your doctor is saying does make sense in that (depending on the amount of trauma your body has suffered) inflammation can be a factor. But the good news is obviously your leads haven't come disconnected - you are still getting stimulation, just too high.
I'm gonna hope for the best case scenerio with the info I've go to go by and say that your Dr is probably right....and since your accident was so recent, a lot can be determined as your body recovers, thus the swelling going down.

I sure hope for the best for you.
It's encouraging to hear how much the implant has done for you since you've had it installed in 2009. Many folks are coming to the boards here asking about these implants.
Please stick around and let us know how this unfolds for you!
Your information can be very valuable to many others here, plus you'll get much support from the others who are enjoying their units.
I love mine. Had it for 5 months now. I am due for a tweek tho.

Oh! Forgot to ask! Has your stimulation changed as in where it is reaching? That could indicate lead migration and that can be checked via floroscopy. You may want to ask your Dr about this to at least rule out the possibility of lead migration. If your stimulation is still targeting the same location, that would be a good sign that the leads are in still in place and as the inflammation goes down, you should get the normal feeling back (Hopefully!)

It'll be great getting to know you
Rae