unless your friends are psychiatrists i would not trust their diagnosis of you being crazy. i cannot give an medical explanation as to why your elbow cyst causes you to have neck spasm but i can tell you that nerves from the neck do go to your elbow area. see your medical provider so you can have this so-called "weird cyst" properly diagnosed.
i have a wierd cist on my elbow and every time i touch it my neck spasms. my friends tell me im crazy am i? . not many more details i was straight forward