This batch is apparently notorious for it. I took a 2 cc shot Wednesday and only today can I actually walk and sit without any pain.
I've had painful injections in the past, but that double cc shot made my whole ass cheek sore as a mother fucker. I couldn't walk or sit. The pain was INTENSE.
However, I just took another shot last night - 1 cc and mixed it with B12 and so far so good. I'll keep you posted.
As far as the quality of the 20201's, they're suppose to be great, so that's not a concern.