This doesnt really surprise. Although I do not use thyroid meds for weight loss purposes, I am hypothyroid and use T3 for hormone replacement.
The problem is that thryoid funtion is inherently linked to adrenal functioning too. If you were to look at the inserts for the newer versions of levothryoxine and cytomel you should see a warning that adrenal functioning should be checked prior to treatment, or something to that effect. Its actually very common for people with poor adrenal reserves, due to years of being hypothyroid causing undue metabolic stress, to initiate treatment and for it to be pretty unsuccessful. In fact, when using T4, it is fairly common for people to present thyrotoxic symptoms off pretty minute doses due to poor adrenal reserves. Cortisol is needed for T3s affintity for receptor site binding to function properly. Cortisol also augments T3 stimulation of GH.
Think of the relationship between the two like this, if the thyroid provide metabolic energy adrenal functioning needs to be sufficient to handle it. When increasing your own thyroid hormone levels through supplementation, you place an abnormal load on the adrenal glands. Therefore its pretty easy to tap into your adrenal reserves. Its failry common to find patients on thryoid meds also having to use physiologic does of hydrocortisone in order for the thryoid meds to bind to the receptor sites sufficiently.
I would imagine that the supraphysiologic levels of T3 you took will have depleted your adrenal reserves and suppressed some of your natural GH secretion leading to you feeling pretty crap. Symptoms include
excessive fatigue and exhaustion
overwhelmed by or unable to cope with stressors
feeling rundown or overwhelmed
craving salty and sweet foods
you feel most energetic in the evening
a feeling of not being restored after a full night's sleep or having sleep disturbances
low stamina, slow to recover from exercise
slow to recover from injury, illness or stress
difficulty concentrating, brain fog
low immune function
food or environmental allergies
premenstrual syndrome or difficulties that develop during menopause
consistent low blood pressure
extreme sensitivity to cold
(These were copy and pasted from some website)
You should also check your morning temps. If they are consistently low this could indicate adrenal stress.
You could look into taking a 24 hour salivary cortisol/dhea test to determine this quantitatively.
I would also reccomend the following though:
- High dose Vit C - 4g daily divided dose.
- B complex
- 600mg Magnesium Citrate at night (after 8pm) on an empty stomach
- Adrenal glandular supplements
- 7 keto dhea (possibly)
Conventional medicine is only just starting to catch on.