I've had a leg pain for a long time. And they can't figure it out. I also get a red band around both of my legs and swelling.
Sometimes Blood clots don't always show up on the ultrasound (Doppler). Once they had me get three, at 3 different places. Two of them didn't show anything. The 3rd one they could barely see something. And the sound of the blood flow wasn't right. So next I had to go to the hospital and have a Venogram (i guess i spelled that right) But my the time I got that the blood clot was gone. But they said they could see where I did have one. My doctor was determined to find out what was wrong. Now he's very careful about what meds I take because of clotting.