freakout, phase 3: the mefloquine edition

I have just taken my first dose of my antimalarial medicine. The list of side effects on this thing is a little scary: upset stomach, vomiting, diarrhea, stomach pain, loss of appetite, muscle pain, dizziness, loss of balance, ringing in ears, headache, sleepiness, difficulty falling or staying asleep, and unusual dreams. Golly. I haven't slept well, truly well, in months, so I'm a little concerned.