I am not sure that taking the extended-release Xanax in addition to the regular Xanax is such a good idea if I'm reading what you wrote correctly.

Also, that's a lot of Xanax. I usually take up to 1 mg of the extended-release and that knocks me out literally all day (hence I don't take it anymore).

Anyway, I've been there - taking too much of a benzo can make you feel like that.

If you're really worried that you might lose consciousness or something like that, definitely get checked out.