Does anyone out there get a sore side when they run.  I get sore on the left lateral side, I think it is intercostal muscles but was wondering if anyone else gets it.  I have seen a Dr who says it is muscular and running is the only thing I can put it down to

It's a constant ache.  I have seen a physio and also had my gait checked although not purely for this ache.  I am aware that it is on my left side and this is my gammy side and when something goes wrong it's always my left.  Think I might have to purely look at this ache and maybe revisit getting my gait checked

Thanks