Dear prolpasesven
I would still be concerned. I am tempted to say be a little more concerned with new symptoms...
My reasons are:
1) pain is not always a bad sign...it just tells you something is wrong and be careful, in your case it was intermittent meaning nothing was permanently pressing on anything...(disc on nerve root), so even though your pain was bad...but it was a good sign...
2) now you have little pain but a pemanent numbness, that implies some unchanging neve damage...e.g, something pressing on something and its not moving or something as pressed on something and changed its properties..in this case disc on nerve ?
3) your pain is going away...its not unusual to have a eduction of back pain symtpms with emergence of lower limb symptoms...that usually can represent the progression of a back problem, not meaning things are better
so i would still be a more concerned...perhaps more than when your symptom wasnt constant...
my impression is, you have either taken the condition through its natural process which is for a disc to be sequestered (chipped off) so its logding permanent on the nerve and not movng...if this is the case, it would gradually resorb on its own, the nerve damage maybe irreversible...
or... the stenosis you have is become more serious and the disc problem resolving...
To make this clearer, I would have a couple of questions
1) ANY MUSCLE WEAKNESS? OR FEELING OF WEAK LEGS? NOT BEING ABLE TO WALK PROPERLY OR TENDENCY TO FALL?
2) ANY NUMBNESS BETWEEN YOUR THIGHS? OR PAIN BTWEEN YOUR THIGHS AND GENERALLY IN THAT AREA?
3) any bladder problems? be it, difficulty to void, not percieving a full bladder...etc
if your answer to any of these questions is a no then do not be alarmed by my replies, if anything at al what is certain is the protruding disc has changed, if you ave another MRI, you would probably see this and you might find where the posterior extrusion is may be larger...
I would suggest a quick visit to the specialist again, to clarify whether this change in nuero signs doesnt mean a permanent and irreversible nerve damage...