Seems all us old bxggers that did ground works,hand digging humping bison beams etc etc are knackered. Bet you were like me jeans and a short T shirt and the old boys used to say " you want to cover your back boy you get a bad back" wish i had listened. Retired now and went to help out a farmer who done his back the other day so what did I do, yea pulled my own back and it went down my leg after two days. Like other lads said though kept moving took pills for a two or three days, won't keep taking them as they can bxgger you up. Not to bad at the moment unless I'm bent over for sometime doing