Today I was watching tv and I had a blanket over myself. My left hand was a little bit asleep so I brought it out from under the blanket to shake it a little. Then I noticed visible blue veins mostly at the top of my palm and on the back of my fingers. Idk if this is normal for me or if I'm just noticing it now but it really freaked me out. My left hand also feels alot clammier than my right hand. But when I move my hand around the veins pretty much go away. What is this? Am I going to be ok?