I really don't know what caused mine. I used to do a lot of exercise, especially aerobics, in my 20s and 30s so general wear and tear may have been the reason. I also have high arches - which I read somewhere could contribute to this condition.
I am now 58 and luckily my husband was able to walk our dogs. I am now completely pain free which is a huge relief. Good luck whatever you decide to do.
Exploratory Essay Help: Navigating the Uncharted Territory of Writing
Where did 'please' and 'thank you' go?
Does anybody work out with kettlebells ?