I may have caught an actual bug in addition to the weirdness of decreasing the lexapro. Here are some of the weird symptoms I've been having that may be from it: coughing (serious hacking), headaches, body-aches, skin-sensitivity/pain, and now fever and sometimes dizziness (usually if I stand too fast or, like, walk through the market.
I was babysitting last night when I discovered the fever! It was great fun. I was feeling worse, and used the baby thermometer and found a temperature of 100.6! After sitting I came home, took some Tylenol, and went off to read in bed. I'm still not great today but hopefully tomorrow will be better.