I was put on an SNRI called Fetzima by my doctor 4 days ago who feels all my problems are a mood disorder. I let her, because I've read SNRI/SSRIs also help with POTS. I also buy the mood disorder part because mood disorders are comorbid with POTS, IBS, all of which I have. But it's not helping. Even though a side effect is raised blood pressure my BP is still around 90/70 even though my standing pulse is constantly over 100. In fact I feel more dizzy when I stand up now and I'm even more tachycardic now but shockingly my BP is still 90/70. Are these meds supposed to take time before they help with POTS or is an SNRI (this one has 10 times for affinity for norepinephrine than serotonin) just a bad idea and I should try an SSRI instead. If so which do you recommend that helped you. Thanks!