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.
1. Carpal Tunnel Syndrome (CTS) Repetitive activities, such as texting and computer work, may gradually trigger CTS, which is caused ... 4. âBlackberry fingerâ (De Quervain's tenosynovitis) Frequent and repetitive overuse of the thumb from handheld devices such as cell phones ... Wrist Pain www.lifescript.com/health/a-z/mayo/w/wrist_pain.aspx. De Quervain's disease is a repetitive stress injury that causes pain at the base of the thumb. Arthritis.