If you go to the doc with those symptoms, my bet is they'll prescribe benzos. They can be nasty as far as addiction goes, and they are quite abusable. The real question you need to ask yourself is if I do have GAD, do I want to treat it? Pretty much any treatment will change your personality, and if that is what you want, go see a doctor. I "suffer" from all kinds of fucked up mental shit, but I can cope somewhat with meditation and self-medication (mostly the former).
Everything going on in your head is just that, in your head. You are in complete control of your brain man, don't forget that. If you don't like the perception you have, change it. Rationally ask yourself WHY you are anxious, and I believe you will see most of your fears are irrational. There isn't much in life to worry about. Taking some of the stress out of your life may help too... Seriously, don't ever let anyone tell you that you NEED medication.