Hi there ~
I understand your concerns. I think the pain in your foot is due to the extra tissue that is present in your foot. I think it may be a spur from one of the bones of the feet. I hope you have been seen by an orthopedic doctor. I also think that it is worth having a tissue sample of the spot and sending it for pathology to find out what it could be so as to relieve your anxiety
. I hope this helps.
Take care and have a lovely day!