I just feel like something is going to happen with this trip. Just a sense of foreboding.
Going on trips after BD is common. Back when I was in that position I remember feeling out-of-control, anxious, and stewing upon it. I sent an upset text, which didn't help matters, lol. I remember another poster here went further and greeted their wife's homecoming with accusations, which REALLY didn't help.
See Scott's thread for a healthy way to handle this situation. Focus on what you control--you! This is the perfect time to see friends and family, discover GAL activities like fitness, or find fun ways to distract yourself (e.g., books, games, road trips). You may be sad here and there but it's constructive and will take the edge off. It makes you more attractive, whereas sending sad/angry messages does the opposite.
If you need to let off some steam, journal here about how you're feeling. ((Hugs!))
