Brownish Yellow Colored Skin Around my Eyes? (photo)

I am not the only one in my family to have this problem. My older sister has it too. It doesn't resemble what typical dark circles around the eyes look like. It is the spreading undertone of yellow that I am curious about. I have no allergies. No symptoms that could be related to jaundice. My mom has been diagnosed with hypothyroidism. Not sure if it is a thyroid problem. Sometimes I am anemic, too. Cannot donate blood half the time because of low iron. Any suggestions?