hi Jules!
First of all i would like to ask something ,for how long are you having this problem? do you have some other associated symptoms like weakness,fever, pain, itching,tightness of skin?do other member of you family also have this type of problem,how old are you?are you on medication like systemic steroids?
From the pictures it seems like rare type autoimmune connective tissue disease to me.I would like to suggest you to see the dermatologist have immunological markers tested as well as tissue biopsy done to make the definite diagnosis.