Well, 2011 has been the year of many a left knee disaster. It started in January while training for my first marathon. I was skiing and fell onto my knee. It subsequently swelled up a bit and was painful on the kneecap, but mainly just prevented me from bending the knee. The result was the skiing holiday was over, but it wasn't too bad as it was my last day.After coming back, i gave it a couple of days to recover (which it did) before getting back into training. 2 miles in to a 6 miler, the unmistakeable pain that comes with ITBS (although i didn't know what it was at the time). I cut short the run and had a few days off and tried another run, with the same result. Visits to the physio followed, with all the ITBS straps and foam rolling i could shake a stick at. Despite this, i just couldn't get beyond 10 miles and thought the best thign to do was to pull out of the London Marathon in early March. Cue much heartache.Then went on a stag do a couple of weeks later and an unidentified drinking injury left me with a massively swollen knee, which was just impossible to bend. I went to hospital, who advised me i'd spraned my cruciate ligament (i still don't know how). So, left it a few weeks to calm down, aided by ice, heat, ibuprofen and the like. Slow progress with this continued to the point where i was able to do some cycling. Just about getting back into it when i had a fall and landed on the same knee (that's 4 different injuries in 4 months!), albeit above the knee on the inside of centre. THis was about 2 weeks ago, and now the swelling has pretty much completely gone and there's no more heat being kicked out of the joint.The issue now is one of just a dull ache in the centre of the knee. It's not painful as such, but just feels tired and weak more than anything.The question is, what to do with this ache to make it go away and so i can get running again (i won't be rushing it)? Get back on the cycling (perhaps in the gym this time)? Weights in the gym? Rowing?Advice appreciated!