Caffeine can make people jittery and cause fast and sometimes anbormal heart rhythms. It sounds like you should stay away from caffeine. Reasons to seek a doctor would be if you are having passing out or near passing out episodes, palpitations, or if there's a history of young people dying suddenly in your family.
The total duration of treatment depends on the complexity of the treatment and is generally comparable to that of traditional braces. Typically treatment can last between 9 and 18 months. During your consultation, your Invisalign Provider can provide you with more detailed information.
Invisalign is an alternative treatment to braces that fundamentally changes the way we move your teeth. Instead of metal brackets and wires used in traditional braces, Invisalign uses a series of clear, removable plastic aligners to straighten the teeth.