Wow, this is a lot like me too. Have always been this way. Have not vomited since I was 12 and I wiil be 42 soon. Hate it. I try to stick to natural remedies and most work well for all the stupid stomachs issues I have. One good one for gas and bloating is activated charcoal. Ginger is good too. Don't take them at the same time because the charcoal will make the ginger not work. Keep some with you on your trip and take a couple twice a day to absorb any toxins you might ingest. I5 is very good if you think you have FP. Have fun and stay safe.