My experience with anti-anxiety medication went a bit like this:
I find myself having a hard time getting to sleep at night with a bit of tightness in my chest.
I go to the doctor, who tells me that I'm depressed and anxious. I tell him, "I don't feel depressed or anxious." He says, "Well sometimes you don't feel the anxiety, but your body does. I'm going to prescribe you some Escitalopram (Lexapro, SSRI) and some Alprazolam (Xanax, Benzodiazepine). Take the Escitalopram every day and the Alprazolam when you're feeling especially anxious."
I proceed to do as directed, though I wasn't feeling anxious or depressed. Didn't really feel any change in anything. I could have been taking a sugar pill. So when the prescription runs out a few months later, I stop taking the Escitalopram entirely. Within a day, I start feeling very strange. Every couple seconds, it feels like an electric shock is zapping my brain. I can't concentrate at all, feel bizarre.
So I go back to my doctor, who tells me that maybe it's a brain tumor and that we need to get an MRI. I say, "Well I just stopped taking the Escitalopram. Seems like this is probably just withdrawal symptoms, right?"
Doc says, "Oh no, Escitalopram doesn't have any withdrawal effects. It can't be that, so we'd better get you this $5,000 medical scan."
I said, "Thanks, I think I'm going to get a second opinion." I go online, and see that the withdrawal symptoms of Escitalopram are EXACTLY what I'm going through. Never went back to that quack of a doctor. Never want to take an SSRI again.