Thanks for your reply.
This seems to be a soft tissue trauma. The bone cannot bleed till its fractured, Normal xray rules out any fractured bone and similarly rules out bleeding from bone. Yes this can be a soft tissue trauma with some bleeding inside which has stopped. It will hopefully go away in few days. Right now the course of treatment would be tab ibuprofen thrice daily, leg elevation , icing like you are already doing. But if things continue like the same or worsen then donot ignore this and see an orthopedic doctor because if you have seen a PCP , he might have missed something.
i hope this helps you .
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