I'm not sure the finding of mild spinal stenosis has much to do with your pain unless you find trouble walking any distance unless you are pushing a shopping cart (bending forward with shopping cart opens up spinal space and elevates compression).
You mentioned your right hip is a problem. What you seem unaware of is the right flank -hip area pains. If you pinch the flank is it quite tender there? If you press your lateral hip crest do you find your ribs abut and perhaps descend beneath your hip crest?
If so you probably have some of the following:
Right iliac crest - rib impingement
Right quadratus lumborum spasm

possible associated thoracolumbar pains, gluteal and piriformis spasms
http://posturedirect.com/wp-content/...2017/08/QL.jpg
You will notice from QL pic, the Quadratus lumborum in part goes from 12th rib to iliac crest - so where is it when 12th rib is below iliac crest? - all crunched up and very sore especially more anteriorly below lowermost rib.
The flank tissues become very tender and the cluneal nerves that run through area become very tender.
Leaning forward in a chair can make them rub more.
I am not sure if continued pain down leg is a form of sciatica or coming from the pirifomis muscle.

You could also have other issues like facet and SI joint but you need to see someone to have this sorted out.