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.
Causes of Twitches: The following medical conditions are some of the possible causes of Twitches. There are likely to be other possible causes, so ask your doctor about your symptoms. Normal occasional body twitches. Habitual twitches. Various types of movements that might be imprecisely called twitches include: Tics.