I’m not a frequent ‘poster’ on the forum, but I do read a lot of the posts, and like to compare my experiences with others.PROLOGUE:In autumn 2009 I had the EMG and was diagnosed as having BFS with cramp. It started to get a concern around the spring / summer of 2008, one year after having an operation for a prolapsed L5 S1 disk. Three months before the op I was getting more intense sciatic pain (and ignoring it like a man does), but one evening it got too much so with many pain killers I went to bed. The next morning I lost a lot of function in my leg where the nerve was being compressed. I particularly remember I could not push my heel of the ground and when I squatted down my calf felt ‘dead’ or ‘cut off’ and much different then before, but physically it looked and felt the same.BFS:My recovery from the op was slow I believe. I read stories of instant relief after the op but my rehabilitation took over 2 years to really improve my movement and fitness. Then it started. Localised in the left calf, the fasciculation’s started and intensified to such a level, I could not relax my ankle as the calf muscle would contract into cramp almost immediately.INTENSITY:As we all know, exercise excites the fasciculation’s, but I needed exercise for my back rehab, in fact if I had exercised before maybe I would never had been in this situation? But I knew it was important to me so I would have to put up with the BFS.CRAMP:Let me be clear, the cramp was so severe that whenever I relaxed horizontally (not a euphemism for anything) the calf would cramp up. After a gym session, laid down in the sauna, my calf would twitch so much it was like a mobile phone vibrating on a table. It felt like my leg was moving about on its own!I under estimated the cramp naively sometimes. In 2008 I went on a diving course. In the pool with a flipper on, my calf cramped and due to the water resistance I could not lift my toe up in time, and the cramp stuck. I had to be rescued, and lost my confidence after that. (By the way, well done if you are still with me).MORE EXERCISE:In May 2009 the BFS was at its peak, but I was still exercising and enjoying it, but after a discussion with a personal trainer, I decided to sign up for some 1 to 1 sessions. Though sceptical at first, my range of movement in my legs and back greatly improved as well as my general fitness, and I really enjoy my exercise, though the BFS in calf’s remain.‘MIRRORING’ BFSJust before I get onto the interesting bit, does anyone have mirroring symptoms? I do have a few twitches in the right calf, no cramp thankfully, but the weighting is about Left side 98%, Right side 2%. This is the only thing that does not link this whole episode with my initial L5 S1 disk prolapse.WHAT IF I TOLD YOU MY BFS INTENSITY + CRAMP HAS REDUCED BY 50% IN THE LAST MONTH?It’s true. But something has happened to me and I wonder if there is a link?I got shingles 3 weeks ago. I got a big fat wet rash on my shoulder, chest and neck, and I’ve been off work since. During week 1 I was house bound, feverish, and miserable. Half way through week 2, the blisters dried up, and pain area reduced in size, and it was then I noticed that my calfs were not contracting into cramp when relaxed, and the BFS reduced considerably. I went to the gym 2 times last week, 3 times so far this week, increasing intensity, and the amazingly ( so far) the BFS has reduced.Now we all know that BFS is linked with the nervous system, and Shingles is an off shoot of chicken pox that also attacks the nervous system. I’m just wondering if the body’s natural defences in fighting Shingles is also improving the BFS?OK – I’m not back at work, so I’m not in a normal routine, but I also believe my personal training sessions that challenge my movement in the legs & back have helped in a big way, and has this attacks of Shingles contributed in any way, in terms of my body fighting this illness somehow having a positive effect on my BFS?Who knows, but I’ll keep you posted.Rob.