Hello,
I have studied your case.
This can be pain due to stretching of nerve .
Complain suggest disc pain leading to
radicular pain below knee.
Due to compression of this
nerve root in spine there is pain in your knee.
I will advise you to do MRI spine
For these symptoms
analgesic and neurotropic [pregabalin] medication can be started consulting your doctor.
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.
I will advise to check your vit B12 and vit D3 level.
Also examination of knee joint is important to rule out local knee pathology.
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.