Hi. I am just wondering if anyone else experiences their arrythmias very much when they sit or lie in certain positions? When I lie back in bed or sit on a low chair, it is a very very significant trigger for me. I feel my heart begin to flutter and then go into full force AF at these times. Several doctors gave dismissed this as a trigger and try and explain it away by saying I am probably just more conscious of the palps because I am relaxing. I find this very frustrating as I have tried to explain that one cannot generally NOT be conscious of your heart galloping in your chest at a rate of knots so it is certainly not that I am 'only noticing it ' when I 'relax'. I actually began to find that bed was not a resting place for me anymore and began to sleep upright to try and reduce symptoms. I am very curious to see if anyone else has experience this or if anyone can explain it. My EP did say that it can be something to do with the venous return? ?