Crikey, can't believe it's been a month since I first posted about this.
Well, managed to get through the gig by strapping my finger up. Gig finished, next day index finger and thumb on fretting hand covered in blisters and swollen to a point that I couldn't bend them, massive blister on heel of picking hand.
This spread to other parts of my body, quite unpleasant.
Am now on my third different medication (antibiotics), turns out it was some kind of bacterial infection. Antibiotics seem to be working so am hoping to get back to playing the bass soon, I was even considering packing it in and taking up keyboards if things didn't improve.
So my next question is, do I deserve a new bass for being a brave little soldier?