should I be worried? I had an arthroscopy on my knee last week to flush out loose bits of cartilage - it's still very stiff and quite sore and during the day my foot has become quite numb - sort of pins and needles-y feeling - and I'm actually getting less mobility in the joint than a couple of days ago - any ideas what might be going on? I don't have a follow-up with the surgeon for another 7 weeks