I have pain in my lower back since 2 months have consulted a orthopaedic doctor and without any tests he told me that I might have a lumbar disc problem and suggested me to take physiotherapy initially I use to get numbness in my buttocks and pain in back of thigh.after taking 15 sessions of physiotherapy the numbness have gone but I still have pain in my thighs and tingling in my nerves.what should do now continue physiotherapy or see the doctor again.