hi Alexa

English is not my native language..

Without being tested its difficult to answer.
1st of all i´m no doctor. The one we had here sadly isnt among us anymore..
I quess some more info is needed to help you a bit more.
How old are you? Are there any known heart diseases in your family started before 50?
Do you smoke? are you overweight? whats your Blood pressure ?

What you are describing doesnt sound to serious to me, but without more info and certainly without tests its difficult to say.
Within normal healthy hearts pvc's arent a serious threat. There are some studies which states that there is a slight increase in danger. But that is statistically not really scary. Lets say you normally had 1% of a heart problem , now maybe 2 %..
But even these studies arent really valide. cause these were often elderly people..
coughing is known within pvc's / skipped beats.. something to do with the vagus.

To answer your question for now. I quess you'll be ok, but that your flight could be an unpleasant one merely due to the anxiety upfront.

sorry i cant be of more help

Hi Alexa,

Assuming you have had all the tests I cant see why there would be any risk to flying. Your cough may make sense if i quote RLR in the first part of his 1-6 writings on palps: I do hope it helps.

"Let's start here by talking about a very special part of the human anatomy called the Vagus nerve. The vagus nerve, also referred to as the 10th cranial nerve, is appropriately termed a "mixed" nerve. It provides a sort of two-way communication of nerve impulses back and forth between the brain and the pharnyx,larynx, esophagus, stomach and associated abdominal viscera(basically, your throat, windpipe, your tummy and guts), the heart, lungs and several more complex but irrelevant body organs or functions. The vagus nerve is the longest and most complex of the cranial nerves in the body.      
   
The key point here is to make note that this nerve involves the "heart," the "lungs" and basically the whole digestive system of your tummy and intestines. Now let's pair that with some real specific and limited physiology about the heart and its rhythm."