Strange one.I just wanted to ask if anyone has had or has known someone who has had this strange MS symptom. I am currently going through a bad relapse. At the moment the sole of my left foot feels like it has a knife inserted in it and is being constantly pushed in (this is the only example I can give that comes close to the sensation). I am in constant pain and just wondered if anyone has had anything similar and how they dealt with it. Any advice welcomed.