Brief Answer:
Investigations/ expert advise/ specific treatment & self management .

Detailed Answer:
Hi XXXXXXX
Thanks for the query. I have read & understood your concern.
Burning feet can be due to simple causes like over use/alcoholism/ B complex deficiency.. to more complex conditions like nerve involvements ( pinching of local nerve / spinal nerve ) like tarsal tunnel syndrome/ lumber spondylosis. or neuropathies in diabetes/ hypothyroidism.
But looking at your age/ symptoms being varied from cold legs to hot feeling in legs... indicates Nerve involvement to be more likely the cause.
- still an over all evaluation of health to exclude other causes & specific neurological investigations like CT scan/ MRI of the feet/ lumber spine & also exclusion of diabetes, thyroid disorder should be the approach to the problem.
to consult your family physician for primary assessment followed by treatment for simpler causes / referral to orthopedic surgeon for nerve pinching would give you specific guidance for the problem.
- Treatment would be cause specific .. like management of vitamin deficiencies, control of diabetes , thyroid problem along with B complex supplements / Medications like anti inflammatory drugs, vitamin B 12,physiotherapy, use proper foot wear/ orthotics ( inserts , arch supprts) as per orthopedic advise, surgery to correct nerve damage or pinching.
- Self care -
- Control / stop alcohol
- wear cotton socks / specially designed foot wear or Orthotics
- dip you feet in cold water & have symptomatic relief,
- Improve your diet specially for vitamin B ( sprouts, fermented food )
- Foot exercises/ physiotherapy as per expert advise.
-Rest your foot, avoid over exertion or use./ rest your feet on pillow while taking rest.
Thus proper investigations to evaluate exact cause/ expert advise & treatment along with personal care would get you relief from your burning feet.
I hope, the answer was both informative & useful to you. Any follow up query you have, I would be happy to help.
Thank you.

---