i had an endoscopy also to check to see if reflux or escape of gases was exacerbating my asthma. i get periods of asthma of up to 12 weeks 24/7 when i cant take more than a half breath without going into coughing fits. the endoscopy was negative. this had to be at least 7 years ago.

I ddnt think you have asthma too. I notice that my breathing gets worsen when I'm full. But I don't have cough.

I'm almost certain my GI doctor will recommend the endoscopy.