I feel your pain.
I'm off the bike for a while, and probably selling my fixed - riding brakeless is so much fun, it just felt wrong to impede my fixed by putting the brake back on - like clipping wings of a bird. I've come to the conclusion that brakeless fixed is like that girl you went out with when you where 20 who was great in bed, very sexy and totally unpredicatble and crazy. It's very consuming, very exciting and intoxicating; but ultimately it's gonna cause you heartache, fear and ruin your life.
I've got plans for a classic blinglespeed, though.
Glucosamine 2000mg is great, anti-inflammatories too. Go to the doctor. Gear down. Get a brake?