Posted: 29/12/2014 at 20:51
Go to a different running shop. Although arch height/foot shape is a very generalised concept, a high arch is supposed to be an indicator of a supinator/under-pronator which would match your wear descripiton. Did they watch you run at all or examine your current running shoes?
How old are your shoes? If they're old and your problems are recent and not linked to an increase or dramatic change in training, maybe just buy a new pair of your current shoes. If the shoes are new, are they the same as you've had before?
Other options, a sport massage may help if the problems are just a result of muscular tightness or imbalances or a see a sports physio to identify what's causing your problems.