Don't freak out too bad.

Yes you should see a doctor. But in the mean time, sounds like a fungal skin infection similar to ringworm. You can try a cheap, at home treatment to see. Buy some dandruff shampoo, like Head and Shoulders. Put a little dab on each spot (and rub it in and leave it there, kinda like you would lotion) once in the morning and once at night. After 2-3 days, if it's a fungal infection, it should show marked improvement or be gone.
A doctor would give you better medicine.