Hi, sounds similar to something that happens to me sometimes. I can knock (or just move) a finger or my palm just gently and it will really hurt and a purple bit will come up under the skin straight away. Sort of like I have hit and bruised a vein or a ligament or something and it swells up and I can feel it tingling. But it always goes within about 10 minutes so I have not worried about it. It only started happening in the past few years.
I find it weird as if I really bang my hand or finger it does not happen and it seems to just be small movements that I have not even noticed that do it.