Uneasiness/discomfort after having food.

Hi respected doctors here, my age 29 , wt. 73 kg (bmi 23)  Lean boy with height 5.9". Whenever I have food (4roti n subji) or drink full water like 2 glasses.Immeditely after finishing meal,I fill uneasiness and discomfort all over the body. I can feel my heartbeat sensations allover the body specially more on my stomach. After 1-2 hours everything become normal. No symptom of nausea, vomit , indigestion,diarrhoea ,heart burn. Rest of time or empty stomach everything reamins normally I do fart many times. I have done Abdomen ultrasound.all parts are normal and no abnormalities found in any of the organs. Blood test,CBC, ESR, Urine test(Bun creatinine), Stool routine test , LFT, Lipase, Serum analysis everything have normal values. It is happening for  last 1.5 yrs.I am not able to find the exact reason or solutions. Can it be due to acid reflux or gastric issues. Pls suggest any advice.I have all reports with me. Thanks in advance for giving ur valuable time🙏