hi transformie-
i'm concerned that your not feeling well. what about doing simple yoga in your living room with a youtube video? that's what i do. i know birkam involves high heat, but even simple movement and breathing might help with the pain.
sometimes, when i can't be bothered, i watch this video and it always inspires me to get up and move and stretch. and when i do, i feel much better.
YouTube - FlowmotionŽ :: Sarah Tomson Beyer :: Yoga Flow 3 (2007) :: (audio swap)