Behind my knee on my left leg only, Ive had some what looks like veins pop.  They look like bruises but theyre not.  I also have a small knot about the size of a pea in the upper part of my left thigh.  The area behind my knee almost feels like the circulation is cut off.
Hi, you could be having Varicose veins or Bakers cyst or very unlikely but possible to have an Aneurysm of the Popliteal artery. You should get an ultrasound or a Color Doppler of the area done to confirm the diagnosis and then treatment can be guided accordingly. Take care.