Maybe this post seems relevant:
https://www.dharmaoverground.org/fi/discussion/-/message_boards/message/2405128
What were your teacher's instructions? Is the pain bearable? Could you foster more equanimity with the pain and see the impermanence of it(all the shifts and changes in locale and intensity)? You could try noting once every out-breath as Shargrol recommends. Have you tried just being present and and noting without labels? Does the pain go away? Notice everything else going in your experience too, "sure there's pain, but what else?" In the dukkha nanas you really want to foster (shamatha) relaxing and centering as A. Dietrich Ringle suggests. All in all, stay present with the sensations that are presenting themselves and don't shy away. Very simply. Have a confident attitude, equanimity is right there and the lessons you're learning in the dukkha nanas is that "can I be fine even with this?" Keep going, but gently.. no need to bear down or grit, just be aware and present. Laugh at the pain because it's Mara throwing everything they've got at you.
