I felt nauseous for the first week or so, & grit my teeth alot too.
They all have different side effects, but they'll usually settle. Mine increases everything for the first 4 or so weeks, then reduces it. (Sorry, dunno how to explain that better,lol).

When I wasn't sure though, I posted in the private depression & anxiety support group. Have you joined there?? There are others in there on the same meds as you & they'd be able to answer any questions you have