Yes, I can relate. I agree with Carol, that being vertical after eating like that helps.
Small meals are easier to digest...as well, keeps the digestive tract working more constant and less hard than with only eating large meals less times a day.
The soda is gas....which will <<<expand>>> and cause some symptoms to be exacerbated.
As well, fatty foods take longer to digest.
You might want to consider to purchase some digestive enzymes to take when you eat.
I think most of your symptoms will be from the soda. If you do like to have soda on occasion...pour it in a glass with ice and stir out all the bubbles with a straw.
It should be out by tomorrow.....