For the past 4 weekends now I have gone into AF. The period has ranged from 6 to 36 hours. Currently I'm still out of NSR and hoping my increased dosage of Flecainide will pull me out. I really don't know what's causing it. I've been fine on my drugs for ages with only the odd episode in about 8 months. I'm a very active 43 year old and I do exercise quite a lot through the week, but it's like my AF knows it's the weekend and flips me. I know people believe their AF could be related to the Vargal nerve, well I didn't think mine was. However, twice my AF started after drinking cold water and once after eating a large meal. My previous episodes have been pretty much asymptomatic, however when I went into AF yesterday I struggled with my breathing. I went out for a walk and felt like I'd be on one of my training runs. Is this a sign of my AF progressively getting worse? Could it be my dosage of Flecainide needs increasing? I know I need to discuss this with my a consultant and I will. It's just I thought I was managing my condition, but the begger is getting the upper hand.