Red/purple Hands Why Does My Skin Have A Bunch Of Red/purple Lines?

Why does my skin have a bunch of red/purple lines? - red/purple hands

Especially in the legs or feet and hands, there are many lines that usually form in the media and round shapes. There are significant and are very rare. My skin is dry and pale. I've also noticed it gets worse in colder conditions, and if I'm nervous / anxious. What is it?