Sudden bump on the side of my foot, painful

Sorry, there are so many structures in that area and possibilities as to what it could be, its almost impossible to even guess what it is.

 

Update for anyone also experiencing this problem.

I did have an infection, and the Dr said I had 'Diabetic foot'. (dont google it O_O) took antibiotics and most of the swelling went down, the redness mostly faded and the heat went away. Was told to keep it up and rest it as much as possible.

Left me still with a bump, and a tight, pulling feeling in the middle of my foot from heal to toes, it also stung like I'd been bitten after trying to walk on it.

Just got back from the emergency Podiatry appointment, and she's almost sure I have 'Plantar Fasciitis', mostly because of my history.

I had broken a bone in that foot 2 years ago, and when I did it I also dislocated and broke every bone in my other (right) ankle and tibia. With lots of complications, infections and 2 surgeries, so my left foot was taking a lot of strain for over a year. My feet are also long, thin and flat, so the Podiatrist said that was also a cause for 'Plantar Fasciitis' coming on suddenly with no warning. so with that and the trauma in both feet. she wasnt surprised.

Now I'm on exercises and going back next week to see how it's going.