swollen bumps on inner side of foot

I have bumps size of quarters on both feet in the inside like in the middle of the top and he heel but on the side, they don’t hurt yet I just started work and I stand on my feet all day could that be why?

I have bumps size of quarters on both feet in the inside like in the middle of the top and he heel but on the side, they don’t hurt yet I just started work and I stand on my feet all day could that be why?

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swollen bumps on inner side of foot