Basically you should go to a podiatrist for a full assessment. The net result will probably be orthotics (custom made arch supports) and whilst expensive they are worth it long term. Some people dont agree with giving orthotics if you are pain free, you will get different opinions on this and should decide how you feel - in many cases i feel they are warranted to reduce the rate at which you get things like osteoarthritis, heel pain and arch pain later on. Footwear is aREALLY important part of all of this, but i would reccommend you look into the orthotics before you go shoe shopping and then take your new supports with you when you go shoe shopping. Once you have orthotics the minor arch supports sometimes already in a shoe can destabilize the support, so go to a good shoe shop that claims to and apears confident in fitting shoes that will take your orthotics. Good Luck. PS You will also get varying opinions, but i dont personally believe foot exercises will do much long term - it may strengthen the muscles/tendons and support structures slightly, but will not change the arrangement of your bones!!