I saw you mentioned this on another post and wanted to first of all congratulate you on feeling better. Now for the Europe trip...I'm not sure if you've read about me mentioning this, but my husband is now ill too and very fatigued. He recently had to make a trip to the states and I knew it would be hard for him (and that's putting it mildly) So I bought a product called "No Jet Lag" from an online drugstore and hubby said it worked like magic!!! You take 2 pills (I think) every two hours during your trip. It's ok to fall asleep, they have directions for that too. He's mostly the reason I started buying the vitamins from the Pro Health store, I knew I had to help him make it through this business trip. What a blessing that was, I'm feeling pretty wonderful now too. Also, Neuro-B sublinguals are amazing for that little boost you need to help you get through the day. We buy the 5mg one's. You can take 2 per day and I love them. Hope this can help a bit, Nancy B.