yes
Her hands looked clammy because of severe heart pain; heart attacks.
no
i think a chest pain that gets gradually worse before the heart attack. if someone has a better answer, please improve this one.
Nausea can be a symptom of a heart attack.
Yes
symptom of heart disease
yes, yes it does so if it's happeningto you...see a doctor
One symptom of anxiety would be having heart palpitations.
Because it can block off the circulation of blood going to your heart, which can cause heart attacks.
There are too many things that could cause these conditions such as shock to the body (from a car accident) severe pain; heart attacks, etc. If you or anyone you know looks like this get them into ER immediately!
In second-degree heart block, not every impulse reaches its destination.
third degree heart block