Red Dots With Black Spots On Legs, Feet, Itchy, Bleeding. What Could It Be?

i have recently meaning just last weekend, been in the trees and bushes, this morning i woke up with red dots all over my legs and feet , just now i noticed some small black dots in the middle and i thought that they were maybe thorns or something so i took them out, and then one started bleeding while the other let out a clear liquid. they were a little itchy before as well. I dont have any aleegies so i am sure that it is not an alergic reaction. But if you could help or tell me what it is that would be great, thanks alannah