welcome !!! so happy to hear you are listening to your body - I find I ignored it when it was basically yelling, screaming and bashing me over the head to stop abusing it.
Please do pay attention to your pain and level of it. I think another poster mentioned acute pancreatitis...I have a friend who suffered from this (yah, from boozin') so please please do just monitor how you are feeling!!
You found a GREAT forum. I'm new here myself (one month sober today!) and I cannot tell you how amazing this board and it's members are.