Pain relief

For the last two weeks I've been plagued with pain in the bones of my feet. Walking was agony first thing in the morning and after lengthy periods of rest.
I thought it was due to me having a low foot arch and the fact my job involves a lot of walking and going up and down ladders.
Anyway I got an appointment this morning and now have to go for blood tests as my GP thinks it may be Arthritis......just peachy. In the meantime he's put me on a course of these to help with the pain......plus side is I now don't have pay for my prescription as I'm over 60......I shall now wait and see if they work