question: I had a training last Monday and I hurt my hand. For the first 3 days I though it was just a bruise but on Friday I noticed my had got swallen and it began to hurt more. And it makes the strangest sound on the inside, like chewing rubber. I can use my hand , my fingers works just fine it s only a numbness feeling along the bruise and I feel a sord of vibration in my lower arm bone when I use my hand