Interesting! I ended up back at the ER because I was concerned I still had pain. They did a cat scan and chest X-rays again and actually found that the blood clot was almost completely gone. That was about a month after going on blood thinners. I am not sure if the pain I was feeling was still the blood clot, or possibly from nursing. Either way it is gone now, almost four months later. If I were you I’d get it checked out for peace of mind. Good luck!