@Mama_Cakes – how interesting you mention this.. Just today I was talking with a coworker who travels frequently. He’s based in Austin, TX and said when he gets back from a work trip elsewhere by day 2 at home he needs a nap by 2 or 3 in the afternoon. He’s just so tired and feels wiped out for no reason. He attributed it to the several kinds of tree pollen and said it’s at it’s worst right about now. He also said he’ll usually notice a greenish-yellow coating on his car the next day after feeling esp. tired.. (heavy pollen).
If you suspect its spring allergies maybe try taking some OTC allergy medicine (e.g. Claritin or Allegra) and see if after a few days your energy level seems back to usual.