I have had Thyroid cancer so I have been a wide range of TSH levels. I can tell you that I feel MY ABSOLUTE BEST when my TSH is less than 1. (my levels need to be suppressed for my cancer, typically they don't keep you that low). I realize that everyone might be a little different, but I do think that it is possible to feel hypo dispite being in the "normal" range. It is also quite possible that your symptoms are related to other medical reasons (like low vit D or anemia, etc.).
If you are feeling hypo but your level is normal, I would try homeopathic ways to keep your thyroid functioning at its best. Particularly watching your diet. There is a ton of info out there. Good luck