I've noticed after multiple incidents that if I ever miss a dose of Effexor, I experience dissociation, confusion, and/or psychosis that can range from mild (I feel like I'm stuck in a dream and the world isn't real, but I can reason with myself that it's because of the medication) to more severe (a relative took me to the E.R. on one occasion because I couldn't remember who or where I was, didn't recognize my neighborhood, and was fully convinced that I was trapped in a dream). Apparently those are symptoms that are extremely rare and require emergency treatment, but when I went to the hospital, they didn't do much aside from take my vitals and send me home after I wasn't throwing up anymore, so I typically just tough it out on the couch and watch television with a friend or family member to keep me calm. How dangerous are these side effects? Do they indicate anything about my mental health (for example, that I could have some other condition that antidepressants do not pair well with)? Why would I experience this every time without fail if it is so rare? I genuinely cannot find anything online about this. 

(Obviously, I need to get off of this medication, for one—I am making an appointment with my psychiatrist to discuss tapering off.)