How to treat excessive flatulence and growling stomach?

Hello doctor,

I was diagnosed with IBS-D by a gastroenterologist. My CBC, abdominal ultrasound, and FOBT were all normal. I was put on a one-month medication that consisted of Rifagut 550 mg (twice a day), Colospa Retard (twice a day), and Librax. My only problem was aggressive BM, not diarrhea but a lot of gas after getting up in the morning followed by first BM, and then another BM in a span of two hours. I weighed 79 kg which then dropped to 72 kg. The doctor says this weight loss is clinically not scary. I did consult another doctor who says this to be gut flora Imbalance and not IBS as I have not had any relief from IBS medication and he believes my symptoms do not correlate with typical IBS. At present, I have frequently passing of gas, especially after eating food or dinner. My morning BM is smooth however I do feel the gas and pressure again in three hours' time and this trend is regular. The stomach gets settled after the second BM. I do hear my stomach growling and if I press my stomach hard I do feel pain like tenderness but only if I press hard otherwise there is not any pain, cramp, or anything. I was advised to take Nexium 40 mg empty stomach for three weeks and I am still continuing with my third week. I was asked to quit smoking, alcohol, and all non-vegetarian items which I have done for the past week. I am also taking one capsule of 64 Billion Probiotic daily along with 100 ml Kefir. My breakfast includes probiotic yogurt along with oats. I also have suspected migraine or occipital neuralgia owing to which I have had lots of Voltaren 50 mg tablets at least 10 to 15 days a month for the past four years. I really want to understand what is this gas, morning episode BM, and stomach growling all about and how can I get rid of this once and for all if it is an issue. Is this gut flora imbalance or IBS? How can I live an effective and healthy life?

Hello doctor,

Thank you for the response. The city where I am placed the major tests like colonoscopy are very expensive. Your answer is very short, do u really feel the need of colonoscopy at this stage? How can I get rid of daily morning issue?