So I felt this lump a few days ago and just thought it was a spot from shaving. However, it's got bigger over two days. It feels hard and knot like. I've tried squeezing it and nothing come out but blood. Sorry for the gruesome picture, I'm just very worried and not sure if I should go to the doctors? It's at the very top of the inside of my left thigh. It's not painful, I little tender to touch and hasn't bothered me over the past couple of days. The lump itself is probably the size of my fingernail. Would really appreciate some help :) thanks!!