I don't have specific experience though I once was advised to get an implantable recorder but declined. The reason I declined was because I worked the problem backwards and decided there wasn't any viable treatment anyway so why bother?.... I wrote down the problem, then wrote down what all the possible causes might be. Say for fainting, I'm not an expert but I know a few things, your fainting would be called "Syncope" correct? Syncope is loss of consciousness due to drop in blood pressure. What can cause a drop in blood pressure? I know of two things, dysautonomia and heart arrhythmia. What can cause dysautonomia ? what can cause arrhythmia? keep going like that. When I did this for my problem, then traced back what the solutions would be I was left with a dead end. Nothing could be done about the problem even if I found out what it was so I decided to live with it as-is. For my particular issue I'm glad I didn't get the implantable gizmo. everyone is different though.