Thanks for providing more information.
Sorry to hear about your discomfort and i really wish to get well soon.
As you describe you have disc prolapse in lumbosacral spine so you need to be seen by an Orthopedist for a clinical examination and if required your doctor may advise steriod injections,surgical intervention which provide your relief.
Also as you have history of blood clots in legs so it can be a contributing factor in your leg pains.
And it is strongly advised to keep yourself active.
Color doppler study of lower limbs,MRI of Lumbosacral spine should be done in your case.
Elevate and exercise your legs.
You can ask your doctor for compression stockings.
A referral to Vascular specialist should be considered.
Having said this,you shouldn't ignore your symptoms and consult doctor again for further evaluation and management.
I hope this helps.
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