I am terrified!!

Didnt have much sleep last night and I woke up with pins and needles and a slight numbness in my left hand, i have never had this before and I am terrified!! I keep thinking stroke or heart or all sorts could be wrong with me!!

I have been awake for a few hours now and this is constant, sometimes I get a similar thing if I fell asleep on my arm etc but that passes really quickly so it cant be that!

I am really scared, my arm is started to ache now and I just dont know what to do!

I have had anxiety for years and my anxiety isnt too bad at the moment so I dont think its related, I am very worried!