What Causes Muscle Weakness, Pins And Needles And Numbness On Skin?

Hi,
I have been suffering with multiple symptoms periodically for about 6 months now, i have seen my doctor approx. 18 times in the past few months, have had an emergency neurology appointment and am waiting for a brain scan.
My symptoms are, muscle weakness, pins and needles, numbness, tingling feeling on skin, dis-orrientation to a degree that i could walk from one room to another and not know how i got there, dizziness, heart palpatations. There is the question as to whether i have been experiencing simple partial seizures. I would like to know whether i may have siphilis, but cannot speak to my doctor now until monday. Can you help me?