post flight fatigue

i just got back to NYC after being in colorado for a few weeks and my body literally feels like it’s been hit by a small truck. i feel stiff sore and have little to no energy. im in a LDR so i travel back and forth a lot to see my partner. does anyone have advice or any pre/post flight routines they do to help traveling take less of a toll on the body? i think im pretty sensitive to pressure changes so any advice on that would be helpful as well!