OK - long story short - I'm a 54 year old menopausal woman. I have always been a runner, sometimes more serious than other times. Never competitive but enjoy the odd club 'fun race' or cross-country. I have a decent time for 5K 'for age' and can happily run a steady 10K if I feel like it. I got o the gym twice a week and run 3 x pw.
I have low blood pressure and a very low resting pulse. I am very happy with my fitness level and my running, but when I'm not running, I feel so tired. I get home and just want to sleep on the sofa for an hour before I can even go up for a shower!
Any ideas? Not anaemic or diabetic.