Bumps that hurt??!!?

there is this weird bump on my leg, it is not a scar or bug bite or pimple. it just happened , it hurts likee a bruse and been ther efor a while. then there is three more about an inch away, and an inch down from the biggest one. thes is about two on my other leg , i hav a doctors apointment it should be next week sometime but there relly werird, no colloring though. im also a veggitarian and could it be something with calcium? if it is what is it pls hlp