i do not seem to relate to any of the Symptoms other have with af. just every now and then feeling of numbness and slight discomfort, which i relieve with an hot water bottle,i come from an engineering backround and have put this down to my blood being thinned. For 54 years my heart as be pumping thick blood around my body. it is only logical to assume that if your blood is now twice as thin, the heart must work more freely which could be causing this numbness. just a theory ?