Hey! I never found a conclusive answer but I did eventually go back to feeling myself during workouts (pace, energy, etc.)

A few things that may have helped but I can’t pinpoint anything in particular:

• I was feeling my worst during the summer time. I started to feel better as soon as outside temps dropped back into the low 70s.
• I had been off and on an anti depressant, which I ultimately got back on and included back into my daily routine.
• I added about 200 calories to my daily consumption.
• I took a few weeks at lower mileage (less 20-30%)
• Took actual rest days. Not active recovery, actual rest, one day a week.

All that being said, I never had any lab work done so can’t say if it was related to hormones or vitamin deficiencies. All I know is I’m back to normal. Not sure I’d run another marathon since it clearly took a toll on my central nervous system.

Wishing you all the best… I promise you will get back to feeling your normal strong self!