I'm sorry you are suffering with chronic pain and depression. It's awful to feel that you have no control over your life, and lots of us can relate to that feeling. I hope you can hang in there until your doc appt on the 21st. At that time, I would definitely talk about
other options for meds, to see what is suggested. Keep notes of side effects for your appointment, because the various antidepressants work in different ways for different people! It sucks that you had a root canal on top of everything else. I wish I could be of more help, but I have trouble with med sensitivities, too. You certainly have my compassion and support.
"Your task is not to seek for love, but merely to seek and find all the barriers within yourself that you have built against it." ~Jalal ad-Din Rumi