First time taking Xanax .5mg

I have been on lots of diff benzos all my life for anxiety and so on but when I took that Xanax pill it scared me so bad I was sitting in my car and I was starting to feel really warm then numbness and I couldn’t raise my arm from my legs to put the keys in the ignition is that normal or what? And no I wasn’t going to drive I had someone pic me up 

That can happen. I find that when I have an empty stomach, it affects me way sooner and stronger. Maybe try  taking half of the dose to see if that's all you need.  .5mg will knock me out.  

really? that's to bad Xanax did that to you its a short term medication too. benzos get immuned in your system and they lose effect I know ive been on them Xanax also but didn't work for me hope you get to feel better