Sensory disturb. in lower legs

Has anyone ever heard of these symptoms.....History: I am an active 48 yr old RN. 3 weeks ago MRI revealed large posteriolateral 1.1 cm extrusion of the C4-5 disc with spinal cord compression and compression of nerve root 6. Had all the classic syptoms, neck & shoulder pain, achy left arm and index finger burning. 2 1/2 weeks ago had nerve block done with excellent relief of pain. Had second block done 2 days ago. My neck seems to be doing well but... these symptoms have me worried....numbness and fatique feeling in left leg with pins-needles feeling and back numbness all intermittent and not positional. THis has progressed so far with bilateral legs affected which are now numb all the time, tingling in feet and fatiqued feeling, also sometimes have fatiqued feeling in bilateral arms. What do you think is causing this. The MD who did the injecteion thought it was nothing to worry about and thought maybe it was just the nerves getting back it synch (hope he is right). Could this be a reaction to the steriod? Could this be progressive disc problems that may require surgery? Is the discomfort from a disc fragment and could you see that on MRI? How long before this transient event resolves and how long so I have before the paresis become permanent. I see the PA at my neurosurgeons office on Tues, hopefully he can anser all these questions. Do you think I need to actually talk to the MD at this time. TIt is just driving me crazy that I dont know what is happening. Thanks for your input.