Keep taking it? Bad side effects

So I started pristiq 25 a week ago for anxiety not depression. I’m having significantly increased anxiety, increased TMJ symptoms, headaches, weakness in legs, extreme dizziness, diarrhea and menstrual spotting (I’m on an iud and haven’t had a period in years). I feel like I’m having little tremors all over my body. The best way to describe it is like restless leg syndrome in my whole body. And I’m now sleeping maybe 3 hours a day but I’m totally exhausted. I also have sharp pains in my feet and nausea so bad that I’m only able to keep down water and plain things like noodles, potatoes and bread.

I think I should quit but my doctor thinks I should ride this out a few weeks. Will these symptoms really decrease?