Good reminder. When I was 63 I gradually lost energy to the point it was hard to vacuum or even walk around the grocery store to do the shopping. I chalked it up to getting older but turned out to have a blocked artery in my heart. I had angioplasty with stents and it took about 2 years to fully recover although I have to say I didn't ever have much pain. I'm 70 now and feel great. Younger women, always question a lack of energy, it's just not normal.