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.
A twitching finger makes a person fear they have ALS because this disease causes twitching, so theyâre hoping that the real cause is carpal tunnel syndrome. Finger twitching is common. It can come out of the blue for no apparent reason, however, making a person wonder if itâs the first sign of ALS.