After gallbladder removel my abdomen hurts like gas and bad indigestion I can't even eat a pineapple without pain! What could this be?

Constipation. Constipation after general anesthesia is very common, and scary. You also need to know your surgery site is okay. Use laxatives and lots of hydration tonight. Call your surgery team in the am, sooner if you have a fever or vomiting. Be well.