Wanting reassurance/advice

Hi everyone. I recently spent 3 days in hospital for pancreatitis. They discharged me after 5 IV bags and said they were confident in discharging me because it wasn't a bad case. Roughly 2 weeks later, I had pain again. I believe this was because I returned to avocado too soon, and had vinegar, and maybe other foods that irritated me. I returned to the hospital, and honestly, they seemed annoyed at me and told me to leave after I had a blood test and they said the results came back perfect. I said "so, why am I in pain again?" - he said it was recovery again. I also had another blood test before the pain returned and that came back perfect as well. This time I'm being very careful. No oil at all. I've literally been living off bananas and steamed rice with boiled carrots and green beans. Minimal salt, no other seasoning, and I'm staying very hydrated. My issue is, I have a Greece/Italy tripped book and I'm getting on the plane tomorrow. I'm just wanting to hear people's experience and get some advice to really prevent another flare up. Foods that I should eat, and foods I should avoid, and just generally want to feel like I can quiet this noise in my head that's telling me something is going to go horribly wrong while I'm in the middle of my holiday. I have paracetamol with codeine and Nexium prepared to combat any pain. Any words of advice and support would be really appreciated. Thank you.