Good day, I was wondering if you could guide me in the right direction. Here are the things that is wrong, I have very bad headache s daily to the point of being nauseous , very dry itching skin on my feet, hands and elbow s (no cream seems to work) I am constantly thirsty (and I drink about 2 Liters of water a day and a lot and coffee). I never really feel hungry. I don t snack. and I gained about 10 kg s in 2 months. Also I have to take a few painkillers before the headache even starts to feel better.