Sarah sorry to hear that you are still in pain.
Im now 4 months post surgery and I am still on some pain meds too.
The stim helps with the burning and stabbing pains that I have in my legs, but it doesnt do much for my back at all

which I was a bit disappointed with too.
I thought that once I had it I could sit for hours, because I cant generally, and not have any problems that the stim will help that. Unfortunately, it hasnt. Im not saying its not working, it is, and I have great relief in my legs but not my back.
Maybe as Jenna was saying , did you come off the meds maybe too quickly. You did have the paddles done and Im sure that takes a lot longer than 3 weeks to settle in. My Dr did tell me it can take up to a year for it to be REALLY settled in and the leads/paddles to be scarred in. Maybe you should go back on some of those meds? especially when I read that you had been out of the house for some hours , more than you have done in months. Just a suggestion.
I do hope that you will be able to get the stim back to working like it did when you could get out and about.
Take care
Jackie