TIL that Mirtazapine can cause a "full feeling sinus", along with HRT-related rhinitis (also something I didn't know about!) that might just be why I've felt soooo congested the last few months 
@theresnotime oh that one gave me crazy vertigo!! but it was easy to get off
@theresnotime yeah I get that from Guanfacine, doctor didn't believe it was a side effect until we reduced the dose and it immediately decreased

@theresnotime That one made my POTS so much worse. Nearly passing out almost every time I stood up. Also, killed my libido almost entirely.

Did temporarily fix my bladder issues though. Somehow...