i have been having headaches ever since i was 8-9 years old all tests have been done and nothing could be diagnosed. i am 20. another , separate problem troubling me more recently is extreme shivering and very fast and loud heartbeat every time i have to do something important or even something as insignificant as submitting a file to the teacher or calling up an institute for any inquiry whenever i talk to a stranger or someone i am not very close to i start shivering and get very nervous i was never like this but i have become like this since the past one year or soi am a stage actor and i have been acting all my life but the last time i was onstage was around 2yrs ago in feb my mother passed away since then the situation has aggravated. do i need to consult a psychiatrist? what do i do to cure this nervousness, it bugs me all the more because i am a bold person, it is not in my nature to be a nervous wreck like this.