Diagnosis Please!

I awoke the other day to find these rather unsitely marks on my ribs. They don;t ithch like bites and don't puss up like spots. Any ideas?

In Otehr News
3-2 to MES in the grudge match. Not a great deal of football payed. Still, a wins a win.
Carnivore (full on meat fest) and Stell (spit and sawdust) pubs tomorrow night!