I have been dealing with this for at least 20 years. It really got worse about 5 years ago. I’ve had all types of tests for lungs, stomach, digestion. Maybe 18 months ago I was told by a Dr I had dumping syndrome where my stomach empties too fast. Usually an 1-2 hours after eating I feel bloated and short of breath. It happens with all meals but seems worse with lunch and especial if they are heavy. I’ve tried eating smaller portions but it is hit or miss. I’ve also been prescribed several rx that do nothing. Ready to give up.