Training and managing fatigue with hypothyroidism

Hi guys

I am a 29-year-old female.
5-6 years ago I was diagnosed with hypothyroidism, but I didn’t have any sort of symptoms until 3 years ago.
At this point I started taking Levaxine, I’m at a 75ug daily dose atm, I plan on seeing a specialist in the near future as I’ve just been seeing my “regular” doctor up till now.

I’ve previously been lifting 3-4 times per week in addition to some HIIT or long distance cardio 2-3 times a week, but for the last 6ish months I’ve really been struggling with my energy levels.
I’ve had to nearly cut out my lifting entirely, I might have the energy to do 1 session in a week keeping it quite light, else I just end up very shaky and dizzy at the end of the workout.
The same applies to my cardio, if I overdo it slightly I feel very fatigued for up to 2 days after.
I have also noticed that I get way worse DOMs than I used to.

I also love to dance, so I have been prioritizing this as a form of exercise as this is not very taxing on my system.

I was hoping to complete a half marathon in September, so I will probably down prioritize lifting to cardio for this period anyway.

So my questions:

Do you have any recommendations in terms of how I should structure my training over time to be able to train without hitting a wall several times a week?

Do I need to set up my program differently in terms of sessions per week for cardio vs lifting?

Does the science say anything specific I should look out for in terms of nutrition for thyroidism?

Should I need to sleep more than what a normal person does? I often need to take naps in addition to my 7 hrs, which of course takes time.

I appreciate any help you are able to provide, English is not my first language, but I hope I was able to explain myself well enough. Please say so if anything is unclear! :slight_smile:

Have you had your labs re-checked since your symptoms worsened?

I get them checked on a regular basis.
My TSH is has gone up and down a bit since I started my medication.
3 months ago I was at 0.84 and I didn’t feel too bad at that point, but it seems to vary quite a bit without changing my dosage.
6 months ago I was at 2.0, and I have been as high as 3.3.

Fatigue has never been as bad over an extended period of time as the last 6 months though.
Don’t get me wrong I do have good days, but I feel like I crash way too often.

This is unfortunately too complex of a situation to address through this forum. It sounds like you may need additional medical evaluation for other conditions or contributors to your fatigue.

Are there any negative concerns for someone who just started taking synthroid 88mg in consideration to training and diet?

  • i noticed i was getting more fatigued then my co-workers and more then usual for my job ( electrician) so i saw doctor about test levels . I ended up seeing a endo who prescribed 88mg for my TSH level of 4.14 or 4.33

Not really … though I can’t say whether that treatment is appropriate for you based on that TSH level alone.

i agree on this, i don’t know how i feel on being on medication for the rest of my life. Although hypothyroid does run in my family on my mothers side including my mother and i do also have brittle toe nails, sometimes cold feet. I have had 3 total TSH tests done they all came back within 4-5 over the course of a year. I know he tested for more including test, FSH, white blood cell count etc but i don’t have the results.

is there any danger in trying the synthyroid for 6-8 weeks if no improvement going back off of it? He said it would treat my fatigue .