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.
Eye twitching and Finger spasm. Results: Causes of Eye twitching AND Finger spasm. An imbalance in the level of any of a number of chemicals (electrolytes) in the blood stream e.g. chloride, sodium, magnesium, potassium, calcium, phosphate and bicarbonate.