I'm a healthy 39 year old woman, 5'7, 138lbs. I do not smoke or do any type of drugs or drink. In the past I have had little heart flutters, but last week my heart fluttered more severely, I got very dizzy and the room started to go black. I did not pass out but did get very close. This week, my heart has fluttered a few more times & have a little numbness in my hands/arms, not terrible but as though they are between normal and asleep. Any thoughts as to how urgent this is - or If I should just mention it the next time I'm at the dr.?