Ill for month, bad for 2 weeks spent lots of time in bed. Now pain back of left leg above knee since back on feet been over a wk not improving. Worry?

Up and atom. If you are having swelling, skin discoloration or heat associated with the pain a local internist should evaluate you for a blood clot. Also if the pain is there without you moving: see a doc. Most likely, your pain is from the "bad yoga" of being in bed for so long, stretching a tendon or ligament that hasn't forgiven you yet. Take 200-400 mg of magnesium daily to see if that decreases your pain.