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Just wanted to double check about a pain I have experienced a couple of times whilst out running.
Basically, back at the beginning of January I started to train to run a 5k after no previous experience. I am starting to get quite good completing a 5k circuit in around 35 minutes of walking/running.
However, a couple of times now I have experienced a pain/muscle pull in my back around the lower rib area - the pain seems to be associated to my breathing, though movement makes it hurt too.
Is this normal? Any idea how to prevent it?