If you are at all concerned then seeing a nurse might help - a doctor might not be much help - I had a mosaic verruca at one point and showed it to the doctor - he said it was just hard skin, three times, if I remember correctly - and the chiropodist had to burn it off with acid and it took weeks to go - it was rather painful and it left a patch of my foot sole with reduced sensation.
Using a moisturizing lotion, or even olive oil on them would be a good idea.
Please do not try to cut away, or shave or abrade it off - it seems that a lot of serious complications arise from quite small injuries, which then become infected.
It might be nothing more serious than badly fitting shoes, but warm baths, even just a footbath, walking, going up and down a flight of stairs three times (to use the muscles in your legs to help pump the blood around) all might help.
I am 67, and I bought myself a big trampoline to put in the garden for fun and easy exercise, I'd have had 40 more years of having fun if I'd started at your age and I might even be able to do backflips if I'd started earlier.