Hello,
I have studied your case.
Pain from foot to thigh can be due to nerve compression.
Usually nerve compression cant be seen on
x ray you may need MRI for this.
At old age there will be age related
spondylitis but if there is any nerve compression then that may need specific treatment.
You can take neurotrophic medication like
pregabalin with methylcobalamine consulting your doctor.
I will advise you to do MRI spine
Till time, avoid lifting weights, Sit with support to back. You can consult physiotherapist for help.
Physiotherapy like
ultrasound and interferential therapy will give quick relief.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.
Take care.