the pain i had in the back of my head was so much better after op on 16th may, but each day it is getting worse again, as if pressure building, almost as bad now as pre op. i know they said the op was to prevent not cure, but for a few days post op my walking felt great, no heaviness in legs, felt safe, now not so safe, periods of heaviness, pins and needles etc. same in right hand/arm. thought i was doing brilliantly, now i can see the gain slipping away. is this normal? will things improve as things settle? has anyone else felt the relief i felt post op to be followed by this downward slide? any help gratefully recieved.