421dog, thank you. I will have a look at these and discuss it with the doctor.
ABGD, you are spot on. It is the joint between the metatarsals and the toes. After living in the UK for 14+ years the medical terms are still not very well known to me. In my case it affects the outside toes more then the inner toes. I will pester my doctor for an x-ray. Reading various bits of information on the internet I would expect that it is overuse and maybe not walking correctly.