I have very inconsistent bowel habits. Feel very bloated sometimea even after a bowel movement. Also feeling off fullness even after a light meal.?

Maybe not just gas! Bloating, irregular stools, and fullness may reflect diet (check your fiber intake), alterations in the population of healthy gut flora we each carry, food intolerances, maldigestion due to problems of the small intestine, pancreas, or biliary tree, changes in GI motility (how well your GI tract mixes and moves food along), various infections, and even irritable bowel syndrome. Testing is easy.
FODMAP. https://www.ibsdiets.org/fodmap-diet/fodmap-food-list/
You may wish to visit this site regarding diet that may control ferment-able food items. It may take trial and error to find the right foods for your comfort. Drink enough water so that your urine is mostly colorless.
Have a healthy diet, exercise, drink plenty of water, have safe sex, and get HPV vaccine. Wish you good health!