Sir Wence,
I deal with the missed heartbeats all the time! It's one of the things that bothers me the most. I also have a very hard time in the heat and have been shut up in the house with the air on for the last couple of weeks. My missed heart beats always get worse when I exert myself...ie going up and down stairs, cleaning the house, etc. and the heat seems to make all my symptoms worse including the heart stuff. I'm so glad that you came here and shared, you helped me so much and I hope I've helped you too.
Try and keep positive and know that you are going to be okay!
Love,
Jacquie