Anyone had one? Didn't realise it could cause bone growth in your muscles. I had an impact on my leg last Thursday at rugby had a slight limp, got home had a hot bath and was in severe pain after, my thigh swelled and looked like I had been working my left leg for 10 years on 200lb weights. Couldn't use it at all for 2 days. Still can't walk properly and it gives way every so often, looks like docs for me tomorrow.