Is it normal to feel not comfortable when your hands/feet aren't wet?

I always get irritated when my hands or feet are dry (not dry skin) and I want it wet. I always bring lotion with me and apply it every now and then (so that it can moist and be wet). Everytime I forgot to bring lotion, I always wet my hands and feet with water, and wet it again when it gets dry. In my childhood, I was known using my saliva to wet myself with it until my grandfather introduced me using oil and lotion. My friends think it's weird and unhealthy. I can't even sleep when my hands and feet aren't wet!