Not sure if this is due to training or due to a lack of training.
I seem to be suffering from sharp twinging pain either side of my lower back. Usually it's one or the other, but rarely both at the same time. It goes away after a week of resting, but while it's there running is Out and screaming agony is In.
Obviously, it's cramping my style. I just have no idea if it's due to injury or a lack of exercise on the whole. Tried stretching, which seems to only result in more twinges.
Anyone had experience of this? Pic below nicely illustrates where the pain is.
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