have many bites on feet and some below the knee. The bites are non fluid filled, red, slightly raised, NON ITCHY,and are the size of the circles in the % mark. The tissue around the red bite becomes blanched when rubbed. Do not have fleas. Approx 30 bites for 3 to 4 days. What kind of bug could this be, or is it a s/s of a systemic disorder. 57y/o w/f 5'9" 205lbs. HX: HTN cozzar