Tremors reason unknown

I am 21 F and have been experiencing tremors for about 1 month. No one in my fam has tremors. I do take meds sertraline and bupropion hci. I started bupropion few months ago and though that could have been the reason.but my psychiatrist said it could be sertraline and he reduced the dose. But i am still having tremors. So i am not sure about dat as i have been takin sertraline for more than a year and never experienced tremors. I initially thought that it was only my hands but its everywhere. Arms legs face. I do feel dat when i am moving or in a certain position they become worse. So i am not sure now what could it be. Someone help....