The day after returning from holiday (6 hour flight ) I bumped into a sharp corner and hit my leg (mid calf near the bone). It swelled up into a large hard spongy lump and swelling could be seen down to the ankle. Although very sore and tender I assumed it was just a nasty bump. One week later the swelling has gone down but there is still a large hard bump and bruising visible down to the sole of my foot Also a couple of red blotches on my foot which I had not noticed before but the foot and ankle bruises may only be more visible due to the fading of my tan. I also sometimes have a slight 'tingly' feeling from the lump down. Is there anything to worry abou??