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 eye twitching. Eye twitching, or blepharospasm, is an uncontrollable blinking or spasm of the upper eyelid. Most people develop a minor eyelid twitch at some point in their lives. The causes include: Fatigue; Stress; Caffeine; This minor form of twitch is painless and harmless. It usually goes away on its own. But it can be quite annoying.