Have you seen your blood test results?
Normal ranges are not the same as optimum. E.g. ferritin (iron storage), normal range can start at 14 but under 30 is classed as iron deficient. Also some things don’t always show up on blood test results e.g. if you have been taking B12 supplements the levels will be normal or high, it doesn’t necessarily mean no issues there.
So if your blood tests come back normal then it doesn’t necessarily mean no issues. Ask for a printout of your results and learn how to interpret them. Iron (ferritin), B12 and vitamin D deficiencies have a lot of cross over symptoms. I believe some thyroid stuff too although not something I’ve looked into.
Of course hormones and menopause can add another dimension into that mix… I’m not at that point yet so don’t know much about it.
It can be difficult and frustrating having to always advocate for yourself but there are lots of resources out there.
Check out this thread as a good place to post and discuss some of these things 