I am a 24 year old female with hypothyroidism (under control with medication.) My hands and fingertips are deeply creased and wrinkled- I look like I have the hands of a 50-year-old. There's no pattern to the creases. I'm drinking enough water and I use heavy-duty moisturizer multiple times per day, and that doesn't help. Today, I jabbed one of my fingertips with a pin and it swelled up and the creases on that fingertip disappeared. Why are my hands and fingers so creased and wrinkled?