A reason for your arm or hand falling asleep at night could be because of having a stroke. A stroke is a life-threatening emergency that happens when there is a disruption in the flow of blood to your brain. This can cause paralysis, loss of consciousness, numbness on one side of the body, and impaired speech.
President (capitalization) President is capitalized when it comes immediately before the name of a president of a country. It is not capitalized when it refers to a president but does not immediately precede the name. For example, note the contrast in these sentences: House Speaker John Boehner criticized President Barack Obama Thursday. [CNN]
Unlike president and queen, which only get capitalized when directly preceding a proper name, First Lady is always capitalized! This is according to the Chicago Manual of Style, 16th ed. Your examples should be written like this: First Lady Michelle Obama was a hoot on the Jimmy Fallon show.