Pasha, I would like to help you figure this out but you should also be seeing a physician at the same time. I can not practice medicine over the internet and you should not be prescribing medication for your self.
When you go to a physician, ask him or her for a neurological examination to be sure that your chilling and numbness do not have a neurological origin. It is unlikely but should be quickly checked, and certainly checked if it continues or the numbness extends.
Also, ask your doctor for some viagara, as suggested before.
Buspar is a good and safe medication without sexual side effects, but have it prescribed by a doctor.
FEELING OF WEAKNESS OR NUMBNESS IN LEGS
HEART PALPITATIONS
FEELING OF DOOM OR YOUR GOING TO DIE
DEPRSSION
FEELING LIKE SOMETHING IS CRAWLING THRU YOUR MUSCLES
OR FEELING OF SOMETHING CRAWLING ON THE SCALP OF YOUR HEAD(WHICH IS NOTHING BUT STRESS.)
FEELING STRESSED OUT
SO ON AND SO FORTH
PLEASE GET SOME HELP AND READ UP ON GENERALIZED AXIETY DISORDER.