Honestly, losing weight is the best approach you can take right now. Focus most of your time and energy on that, and you'll see the best results.
As for chiropractic care, stenosis is not something that will disappear from an adjustment.
The most appropriate person to address that question would be a neurosurgeon. They have the most up to date information on surgical intervention for spinal canal stenosis.
You answered a question about chiropractic care helping spinal stenosis and stated an adjustment wouldn't help. Are there surgical options for opening a narrowing spinal pathway? Thanks