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.
When a person experiences twitching fingers that becomes more frequent, it should be checked through a proper medical observation. The nerves or muscles in the limbs can be suffering from underlying illnesses. It occurs when there is an involuntary contraction of the handâs muscles. Doctors can determine the cause and to rule out damage in the muscle or nerve. The patient may be experiencing irregularities in electrolyte levels.