It could be Raynauds or vitamin B12 deficency.
Raynauds comes from blood vessels in the hand constricting from cold or stress. Is your bedroom cool?
My hands look like that if I grab a cold drink.
Lupus, Fibromyalgia, Glaucoma, Asthma, Hypothyriodism, Sleep Apnea, OA, Depression, Allergies, and benign familia tremors
When life throws you lemons....
Pick them up and throw them right back at them! :))