Dear friend, welcome to HCM!
Your symptoms are due to a nerve
compression (pressure) caused by a torn and slipped disc
between the L4-L5 vertebrae in the lower spine.
a Lower slipped disc is also causing little narrowing of the spinal canal
Your spine/ neuro surgeon will guide you regarding the best action course to take.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.