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 toe twitching are: 1  Tensing up the toes (anxiety, habit) 2  Improper footwear, especially a tight toe box. 3  Exercise. Pressure on a nerve (shoes, foot position while seated or lying down)  Anxiety (not necessarily about whatâs causing your toes to twitch, but anything that can cause 1  apprehension) Insufficient calcium and magnesium intake.