Lifestyle modifications and acid reflux

Hi, I have had stomach problems for about 4 years now. It started when I was in college and I ate very unhealthy. I would eat fried foods all the time. I would have diarrhea almost every day and severe abdominal gas pain when I would go to the bathroom.On and off for the next 6 months there would sometimes be blood when I had diarrhea.I also gained 10lbs in one year.I would have severe indigestion when I ate unhealthy, along with constant burping, and bloating to the point I looked pregnant.Nausea too because it would feel like I over ate. Alcohol upsets my stomach.I started eating healthier and my symptoms got better. But I still have the burping and bloating everyday no matter what. I do have abdominal pain and diarrhea if I eat anything fatty. The only time I feel like myself if right when I wake up. Even if I drink water I get bloated. Also, indigestion is still a huge problem.I've gained a total of 25lbs, I exercise and eat healthy but I also have a problem losing weight.