I sat next to the door on Saturday, all dressed and ready for my long run. But I was having heart palpitations, and feeling deeply fatigued- like at the cellular level... that’s maybe the best way I can describe it. That’s been my reality on and off for maybe half a year, as I struggle with hypothyroidism. Each time I’m started on a new dose of meds, I feel fantastic for a week or two, and then the crash starts. You need to wait 4-6 weeks to retest the blood and slowly increase the meds. It’s a long and frustrating process. All while putting my body through the stress of marathon training.
I thought I would be ok with a lower mileage plan- I thought I could get through it and finish the marathon at an easy pace, not for time.
But I was seriously scared on Saturday, feeling the palpitations while watching my daughter play in her room. I had to make a decision. It was a heart-wrenching one... I will not be running Boston this year. I need to set aside my pride and get serious about healing. Running, especially long steady-state runs, require the thyroid hormone T3, and mine is depleted. My body can’t keep up and the meds still aren’t enough. Almost every cell in the body has thyroid hormone receptors, so hypothyroidism manifests itself I’m so many ways.
I’m going to instead focus on building muscle, which has always been a struggle while running so many miles, and I will keep doing spin class for some HIIT several times per week. I’ll take it from there and adjust as necessary.
I’d love to return to racing once I’m healed, but probably shorter distances (5-10k, maaaaybe a half marathon). For now, I’ll take it day by day!
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