You may use a certificate of citizenship or a naturalization certificate, to prove that you are a US citizen. But both the documents are not the same. A US citizenship certificate is granted to a person who acquires or derives citizenship from his US citizen parents.
Causes Of Twitching Of Fingers And Thumb. 1  Carpel tunnel syndrome causes twitching of muscles as the median nerve through the carpel tunnel becomes compressed. 2  A less disconcerting cause is muscle cramps that happen when small muscles in the hand contract.
The twitching can last from a few seconds to a few minutes and can come back unpredictably. While most cases are not severe, they can be bothersome. Here are some of the most common reasons why an individualâs eye may start to twitch suddenly. Stress. One of the primary triggers of eye twitching is often cited as stress. Experts believe that the twitching motion is a way for the body to tell the individual that they are tired or stressed.