Good Luck and enjoy the trail!
School work is mostly learning about things that are interesting. The AT is certainly one with lots of history available. Bugs are not real bad, but can get annoying, nothing like black fly season in the North East or ADK's. Ticks, and Lyme disease, are a problem with many authorities predicting a difficult year. (My wife picked up Rocky Mountain Spotted Fever on our trip, about the same time frame. We spent a couple days getting her tested and getting an anti-biotic. Odd, but, hey...that *is* a trail.) If you can get a couple days to spend in washington, the Smithsonian has excelent natural history departments. Along with coverment visitations...Well worth the stop even if they don't let you climb the Washington Monument anymore.
Yeah, vitamins, and minerals are somthing that is often missed with dehydrated foods. Especialy, the "fresh" vitamins...folic acid, vitamin-C, etc. You sound like you have it well in hand. I would suggest picking up some fresh ruits/veggies as you leave town...pills and mixes are never the same. Use care with water sources, the AT passes through several populated places. Chemical, filters and even boiling does not clean the water in a lot of these.