What kind of sores are they DPJ? Do they look like open blisters that ooze a clear fluid? Little ulcers with a crusty edge? Red patches of skin or red patches with white edges?
It could be anything from anxiety excema to an allergic reaction to something you are eating...if it was strictly on the legs I might say phlebitis which can cause large red pactches on the skin but it is most often just the legs (but not exclusively)....have you done anything differently lately???? Bought new sheets, bed, sofa or chairs????? A lot of people are now reacting to the anti-fumigenes chemicals used in new furniture and clothing....expecially stuff made in China (big scandle here in France right now)...
Have you called your doctor to ask him or made an apt to see a dermatologist?
Sharon