Hi, I fell very hard on my shin bone approximately 5 weeks ago. The shin was black and blue and I could barely touch the injury due to pain. I walked on it within a couple of hours and it was sore but okay. The following day it was very sore and for a week I could not point my toe or pull my foot back at ankle due to soreness on the shin. I did not injure my ankle but within a couple of days a severe bruise appeared at my ankle and across the front of my foot. Although all the bruising has gone, this ankle is swollen every evening. Should I get this checked out? I am flying long-haul in about three weeks and I'm nervous about blood clots? Thanks for your help.