We all get under-eye circles from time to time if we don’t get enough sleep. But it’s when the bags start changing that more attention should be paid. According to bellatory.com, if your dark circles are joined by red patches or dark patches, it may be a sign of Dermatomyositis, another autoimmune disease. The site notes that this disease can cause muscle aches and weakness and make it pretty difficult to move. So don’t be lazy, go see your doctor if you notice any of these signs on your body.