@steveinmontana I think you should see an orthopedic surgeon and get a diagnosis on your lumbar spine. From what you describe it sounds to me like you have some disc compression at L3 - 5 . So it impacts the equada equine nerve root exiting your spine effecting your feet/legs - especially triggered when your exercise impacts your lower lumbar. I have spinal stenosis and all the rest. Surgery became my only option after 18 years. I loved the RFA's but they stopped working at the end. In the meantime find a terrific orthopedic surgeon - that alone took me 3 years and 4 referrals.