This is a bit of a random question but am just wondering if anyone ever gets a sensation of their heart not being in arrhythmias but not being completely settled? I have not had much AF or AT for the last 3 days (which has been lovely) but I keep having episodes of a few hours.. Especially first thing in the morning where it feels like there is a bubble right under my sternum. My chest feels a bit hollow and as though it is not completely settled. It is definitely not in my usual arrhythmias but it doesn't feel normal. I don't feel unwell just not completely comfortable. This happens to me from time to time. I don't know if it is runs of ectopics or my heart 'trying' to get into an arrhythmia. Sorry that this is all so vague but I often find symptoms really difficult to put into words. Has anyone experienced anything similar to me? I wish I were on an ECG machine right now to find out what is going on. There is nothing obvious with my pulse aside from the odd ectopic and a couple of short runs of tachycardia. Any ideas or feedback most welcome! PS. This is not me a analysing my every heartbeat as I tend not to do that and just enjoy being on NSR. I have learned not to try and predict arrhythmias as they bite when you least expect. So this is a genuine sensation.