I used to have a low blood platelet count as a child....I can't remember the name of the condition...but it was EXACTLY as you describe. For a long time I took b6/b12 supplements and was very close to needing a blood transfusion when it cleared up. I was only in the 3rd grade, so that's all I remember (besides having blood tests taken every three days, sometimes everyday...but they made the cotton ball and tape look like a bunny so it was alright!).
Oh yeah, it wasn't anemia. Too few platelets!
Not sure if this helps...best luck with this. Just find a doctor that will look into your blood cell counts (all of them) and a doctor who takes this seriously. Because if you think about what a bruise is, and why you are bruising easily, this could be problematic for parts of your body that aren't as visible, like organs and such. Try not to freak out too much, but make sure you have your blood work monitored.