Im pretty fit , and very active .
Likley too active , you might be correct .
Burning food faster than its going in.
Yep try snacking on bananas or something. I crank down dates for a big sugar bump they even got those glucose tablets but I stick with fruit for the nutrition. eating carbs from say oatmeal or brown rice or fruit or potatos etc.. stuff with fiber and nutritions all helps.
I bet if you strived to crank in 10-20 banans a day at least you'd see some good results. Bananas are like my new beer lol.
If you do have hypoglycemic issues, seeing a Dr will help.
You could find yourself even fitter and more active
Dee is right.
I know my fitness levels went throught he ROOF when i started smashing in more fruit etc.. I have way better endurance and stamina etc..