Gday mate...!!! (ugh... I don't know if I wrote that correctly...)
I have suffered a very similar injury (my thread is just below yours).
Nearly identical symptoms, and current state of the muscle.
One week into it; I have taken the week off from the gym, totally off. The pain is nearly gone, but I still cannot "curl" anything of an substantial weight...
Looking forward to coming back to training, but not biceps / back, this coming week...