I've spent all day getting ready for our flight in the morning. We have to be up at 5am. Just as I go to lie down to get some sleep, my heart starts racing at top speed. I'm sitting here trying to slow it down but nothing is working. I know I've been very anxious about the flight but thought I was OK. I've also heard this could be part of perimenopause, which I'm in at the moment. Anyone know anything to help slow it down? I really need to sleep...