For a couple of weeks now I've had what feels like a bubble on the left side of my stomach a little below my ribs. There is no pain, just this bubble feeling which comes and goes... sometimes it seems to subside completely while other times it's quite noticeable. I was also slightly constipated last week and I took a gentle laxative and the constipition seems to not be an issue anymore. I really don't have any other symptoms that I know of, other than I seem to be burping a lot more than usual and they are very hearty burps which sometimes seem to make the pressure(bubble) in my stomach lessen. Any tips or suggestions on what this might be would be greatly appreciated!

Your stomach goes up on your left, under the heart, and gas does collect there. (When it bothers people they call it heartburn.)
They take baking soda or calcium carbonate (Tums, or any antacid) to make them burp. Burping is the release of the gas. But there's no reason to take anything if you can burp and don't feel pain. Too many antacids are not good. All those prescription drugs like Prevacid and Nexium are the next step and can turn into a lifelong dependency.

Knowing the shape and location of your stomach, liver, lungs, gallbladder, kidneys, appendix - all very helpful general info.