My back wasn't the initial issue either. I had numbness in one foot like you did NP and getting up and down. Sciatica is odd that way. Fortunately they did an MRI pretty early on and figured out the issue.

I actually think mine returned this past year, this time I feel it in my tailbone. It has taken over a year, but it has finally worked its way out after I started actively doing my exercises again and using a posture cushion. I think it's one of those issues that tends to come and go unfortunately.

Hope it doesn't hang in too long for you, Rainbow. It can take a few months though. No fun.