It has happened twice in the last couple of weeks, all the fingers on my right hand turned white, really cold and no feeling. It wasn't even a particularly cold day. I have seen it on a work colleague so knew what it was. It didn't last particularly long, maybe an hour each time. This was in the same hand that has woken me up several times in the night due to going numb (and I haven't been lying on it). Never had this before. Not sure if it is connected.
Thanks very much. Would one of these explain the pain between my shoulder blades too? They have all happened at around the same time.