Bump on the side of my heel. I think it appeared aftr I got glass in my foot a few yrs ago. Now it hurts/is bigger/looks bruised. Doesnt seem infected?

See a foot doctor. If as you say, it is a result of foreign body you may have a foreign body granuloma, but you need to make sure that is what it is as opposed to a cancerous growth. A biopsy would give definitive diagnosis.