Aloha Theo,
Good, Better, Best.
If you have to eat after doing your Spring Forest Qigong, then do so. Some of the energy you've cultivated will go toward digesting the food, but it's not like you are loosing all that you've worked for.
Give it as much time as you can after the exercises before using the bathroom, and if you "need to go," then you need to go, so bring the energy up to your heart area during your "fluid adjustment," and then back down to the lower dantian when finished.
If this were me, I'd have the shower be the last thing I did, so I'd eat after doing my Spring Forest Qigong, then shower, making sure to stay warm and not chilled.
Much Love,
Shawn
