Pain Behind Knee More Condition_symptoms I Have Been Having Lots Of Charlie Horse Cramps In My Calf And Pain Behind The Knee. Now There R Red Streaks?

I have been having lots of charlie horse cramps in my calf and pain behind the knee. Now there R red streaks? - pain behind knee more condition_symptoms

I thought I had low iron content, that I'm so tired. I woke in the night, screaming as they were so badly wounded during the last three nights. I feel a knot or ball of marble, behind my left knee. now both legs have red stripes on the back of the knee to 3 / 4 hind legs.