Dawg, No problemo...Hopefully you have a better skipper this trip!
On the meds, my dentist hooked me up with an antibiotic..I didn't need it..but it was good insurance, same with the pain meds..
You never know what could happen out there.
I also had some suture materials, butterfly bandages...and some betedine.
Thankfully I didn't need any off them. We had one guy get seasick for 4 days...that was a pain..we had no solution for that.. I have since found motion-eze to be somewhat effective on others who feel a little motion sickness.
You might up the thermos' to two..one for hot food, I have a wide mouth thermos for soup..stews..and one for coffee. Lots of energy bars fresh fruit ( for as long as it lasts ) make some sandwiches or something for the night watch in advance. Going below at night to rattle around the galley can be an annoyance to crew on the off watch trying to sleep.....keep eating...if you hit weather, you'll need the strength.
Have a safe, fun trip!