I was on my week 6 of running with 1 week of two 3-4 day breaks (common cold). I did my W6R2 and 2 days after I had an acute pain in my (so called healthy) knee (I had problems with the other one before, but different kind). In the beginning it felt like the joint want to pop into the right spot, like it would lost its allignement, but it couldn't. The pain was horrible for 4 days during going downstairs, squating, and 1 evening even during bending my knee in bed. I didn't find any reason for this pain. I take supplements for joints (JointCare Max - 1 tablet & 1 capsule per day for a long time now), as a protection and assistance for the other, more problematic knee.
I did a break due to this issue, it's almost a week now. I will monitor my knee today when I deliberately use stairs. As yesterday I think my knee didn't hurt, or so little that I don't remember. I know you're not doctors and even if you would you haven't examin my knee. But, would you suggest going back to running this weekend or wait few more days?