Hi when I get 2 minutes later I feel a fluttering bubble on my left side below my rib cage. I also have a discomfort feeling under my left rib cage?

Diaphragm spasm. Your symptoms suggest diaphragm spasm or cramp. If this is an isolated episode that occurs infrequently, then you don't have to worry. If it is ongoing, then you should get evaluated for possible disorder of nerves that control the diaphragm, other conditions. Hope that helps.
Likley nothing serio. Depending on your age this may be a benign condition. But if you have any cardiac risk factors please your doctor.