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 a type of clear aligner that you can use instead of metal or Damon braces. This involves a range of clear plastic aligners that resemble mouth guards, which are custom-made for you. They are removable for eating and cleaning, and you change them out for a newly made aligner every two weeks.