I HAVE PAIN ON THE SIDE OF MY FOOT, MY

I HAVE PAIN ON THE SIDE OF MY FOOT, MY FOOT HAS A BUMP ON THE SIDE IT FEELS LIKE THE BONE BUT IT IS VERY PAINFUL IT JUST STARTED YESTERDAY, I TOOK MY BOOT OFF TODAY (snow boot) and MUST OF TWISTED IT OR HIT IT AND IT WAS VERY PAINFUL, I HAVE A HARD TIME WALKING ON IT, I HAVE DIABETIC NEROPATHY BUT IT IS NOT THAT KIND OF PAIN, I AM A 69 YR. OLD FEMALE.