Please offer suggestions to alleviate my extreme exhaustion. according to my fitbit i sleep well at night. i can get 8 hours or 6 hours and still feel the same about mid day. i have tried increasing my b vitamins along with drinking more water. extreme exhaustion?

Exhaustion: I think the best approach at this point is to seek medical attention for some basic lab tests to rule out anemia, thyroid disease and other common medical problems. Exhaustion can also be associated with common brain disorders like depression, so you should also be screened for these conditions. The list of problems that can cause exhaustion is quite long so a complete workup is appropriate.