Hi, I am a 17 years old girl. I have muscle twitching in whole body for more than 3 weeks. This twitching not occur persistently, but here and there randomly but not all the time. These twitch happen mostly while i am sitting or resting specially at night. Sometimes in hand, sometimes in leg, sometimes in throat, sometimes in belly For a few seconds to few minutes. But there is no pain. I also started having single hiccup or burp(I am not sure) every few hours for about 1 week. I don't have headache or any other problem. My right side of back head is slightly elevated than other but it's from very long time. After studying in Google, I am very much worried about brian tumor that causing pressure on nerve or any other nerve damage. My parents told me these are nothing. Please someone help me. I can't take this stress anymore.