Coming back to post #119, because the follow-up matters more than the original answer.
Vomiting: when it is expected (first-dose reactions or early titration) and when it is a reason to stop and seek help are different. Occasional vomiting during titration is ordinary. Persistent vomiting or vomiting of a new character later in treatment warrants contact with your clinician.
This is where my knowledge stops and I would rather mark the edge than blur it.