Ef is good, and if afib hasnt returned thats good...
Depending on how your afib behaved theres a risk for electrically induced cardiomyopathy.. Structural heart issues from the atrial impulses causing your ventricles to beat too fast.
They vary in severity, and it depends heavily on how fast your heart was beating while you had afib episodes, the total amount of time you were in afib, other complicating diseases such as high blood pressure, lung disease, congenital abnormalities in your heart or blood vessels or atherosclerosis. Your immune response, age and genetics can play a role too.
As you can imagine with all these complicating factors make it hard to predict the degree to which any one individual is at risk for developing these cardiomyopathies.
Likewise patients heal to varying degrees, in some the structural issues that were created by the afib resolve almost completely, in others a "percentage" of dysfunction can remain for a lifetime. Unfortunately as in the development of the dysfunction the degree to which one recovers varies widely due to numerous factors.
Diastolic dysfunction in your case however isnt super concerning. Certainly the individual on the phone was right, your vtach is going to require and ablation or icd implant.. Or both.
That long an episode of vt significantly increases your risk for sudden cardiac death. Given your history there is a distinct possibility that a afib induced cardiomyopathy left behind scarring/reentrant substrate that could support a more sustained or dangerous episodes. Good news is, such a thing is easy to fix, jist another ablation and its gone.. But yes, id focus your attention on the vtach.
If you havent been given a defib vest.. And you ever find yourself feeling crappy, lethargic, short of breath, especially with palpitations it would be a good idea and dial 911 or have someone immediately (as in.. Someone in the same house when you experience symptoms) get you to an emergency room to be checked out. If in public try to be aware of the nesrest aed snd if you gotta pass out try to do so as close to one as possible.
Dont delay or miss any appointments with the ep