I'm an oldie. Though I had some fatigue for years, it wasn't until I was about 50 that I called my doc's office one day and said "something is wrong. I will be in the office waiting room in about 1/2 hour, and I'll wait until you can fit me in." Freaked out the office staff, they kept wanting me to make an appointment for 2 weeks away. "No, I need to see him today."
;^) By the way, I've always had GREAT service from them since. I want an appt, I get it. No questions asked.
Felt like I had the flu - so painfully achy and deadly fatigued for WEEKS. He had me do the aspirin and wait routine for a week. Then did tests. He is young - I call him Dougie Houser behind his back - and he'd had a great clinical rotation with a rheumy. So he put 2 and 2 together and did all the right tests, the first time.
I am one of the lucky ones....no messing around for years not knowing a dx, and was able to get a decent rheumy pretty quickly as well.
~"I find hope in the darkest of days, and focus in the brightest. I do not judge the universe." (Dalai Lama)