Weird upper back pain after sugary alcoholic drinks

Since I was like 19 (this all started with Smirnoff screwdrivers) I’ve had this awful pain in the top of my back when I drink alcohol beverages with sugar. It could be anything with sugar. Cocktails, mixed drinks, juices, whatever. It gets worse the more I drink and then pain lasts until the alcohol leaves my system. This doesn’t happen at all if I drink low calorie seltzers or sodas with 0 everything. I can also do Mios with water. Perfectly fine.

I have met one other person who this happens to and she doesn’t know why it happens either.

Nothing on google. Does this happen to anyone else and do you know why?