xanax and numb erection

I use xanax very carefully being aware of its addictive properties for mild anxiety and sometimes sleep. I never use more then 0.5, however i continue to experience a very odd side effect which I have been unable to find any details on the internet about this problem. The side effect comprises of waking up with a very firm and numb feeling erection ! is this a noted side effect of using xanax? how does it happen

[MrGreen]

How does it happen? You want me to tell you about the birds and the fecken bees?

[remar]

i think you need to see your dr. about this. as far as i know, this is not a side effect of xanax. does it only happen after using xanax, or all the time? remar

[MrGreen]

Maybe he gave him the wrong tablets. Make sure it says xanax and not viagra on the bottle.