I've been taking simethicone, for a while, to help with excess gas(burping) and bloating. i'm still dealing with it regularly and have only seen minor improvements. should i consider seeing if it's something more serious? if so, what could it be?

Simethicone is just a fancy soap like product that helps gas bubbles come together & be expelled easier. The gas produced by digestion depends on the types of food /fluids you consume. digestive & gut germ action. A diet diary can be used to identify foods that make you gassy so you can avoid them. A checkup and review of the problem can confirm or exclude other issues.

Agree with Dr. Ferguson. An additional issue you may wish to address is your food. Visit this site for information: Fodmap diet: https://www.hopkinsmedicine.org/health/wellness-and-prevention/fodmap-diet-what-you-need-to-know Wish you good health!