I get this every now and then.. I have no idea what it is... my fingers/hand swell up randomly. Usually when I've been out all day shopping or something like that (I have no idea what relevance that is?) But yes, my family teases me about it because they think I'm bunging it on... lol it hurts! Running it under cold water helps, it eventually goes down for me. I've no idea what it is... may be a reaction?

I've just realised I've been of no help whatsoever lol!

I hope the swelling stops