About 3 weeks ago, whilst on holiday abroad, I severely bruised my upper arm. I had stupidly decided to try and use the pull up bars in the outdoor gym play area and I learned my lesson when I slipped and my arm / bicep crashed down onto the metal bar with the full force of my weight behind it. At the time, it swelled up into a large lump, then settled back down over a few days into an almighty bruise from just below my arm pit to the inside elbow. It did ache for a while and my wrist still hurts a bit. However, I didn't think it was worth troubling a GP about, figuring it was just going to take time to heal. I've noticed recently, however, that the muscle is lumpy, as if there were little nodules on it. I didn't touch it before because of the bruise. The other arm muscle is smooth by comparison. Does anyone know if this is normal and if I need to see a doctor?