Help,,,,,I am a 50 y,o, male, never had any health issue, have travelled all my life but for the last two years every time I hop on a plane to go somewhere my digestive system completely freezes up.I have tried the most powerful laxative and nothing happens,,,not a twitch.My diet has, always been healthy,am active slim,dont overeat. When I return home my system returns to normal within a day.I have tried to super hydrate while flying and lots of fiber ,prune juice,figs etc,,,, to no effect. Recently went three weeks while travelling without a bowel movement ...so I returned home early and was normal within 4 hours. One doctor tells me nothing wrong with me ,another tells me stress....yet I live a low key non stress lifestyle,am relaxed and happy person and have never had a problem in the past , Worried that my travel days are over....... Can anyone offer me advice ? thank you Jean-Marc in British Columbia