Hi Kenneth
Thanks for the question and as always good to know who to visit in these situations.
As Dr Sean mentions, seeing a Foot and Ankle surgeon is a good option. They can assess you from a musculoskeletal perspective and determine if there is something wrong with this system.
It sounds like you have already seen a GP - and to be honest, this would have been the first person I would have advised you to see - but there are a few other options available too.
1. You could see a podiatrist. While they might not be doctors, they are trained in foot problems and assessments and might be able to assist you with exercises, orthotics etc.
2. A physiotherapist with an interest in lower limb problems. Similar to our podiatry colleagues, they will have been trained in assessment and treatment of common lower limb pathologies.
Depending on where you live, the alternative is to obtain a referral to a Sports Medicine/Musculoskeletal clinic.
In doing so, it is likely that you will see a Sports Physician, who will conduct an initial assessment and carry out relevant investigations.
If needed, they can provide you with medications, ultrasound guided treatments and co-ordinate further management with the physiotherapists, podiatrists and even their surgical colleagues.
In doing do, you can try conservative measures initially and still have the option further interventions if the need arises.
Your symptoms certainly sound troubling so maybe best to look into these things early.
All the best.
Dr Dinesh