the tip of my pointer finger felt bruised when i woke up yesterday and it was extremely sore, but no bruise was visible. This morning when i woke up it felt even worse, but it feels like there is a lot of pressure built up and when i press it, the tip of the finger almost feels hard, as if there is actually a pressure build up. I never injured my finger, but the pain is becoming worse and i can not figure out what this is.