I have been feeling gas moving in my abdomen for over 3 days now. is there something wrong?

List of causes: Feeling the sensation of gas moving in your abdomen could be a whole host of things, including the most obvious, which is just gas/bloating, but other conditions including constipation, pregnancy, gastritis, gall bladder disease, and infection/parasites are also on the list. If the sensation becomes more uncomfortable, I would suggest getting in to see a physician for evaluation.