A magnesium supplement will help with cramps and perhaps sleep to some extent. This site’s Biotest store sells ‘ZMA’. The amounts of magnesium needed are very large and usefully can’t be part of a multi-vit.
TSH should be nearer to 1.0, 3.48 is a major problem.
Thyroid lab ranges are mostly useless.
fT4 is below mid-range, possible iodine deficiency.
fT3, the active hormone is above mid-range, sort of odd.
Really need your oral body temperatures and history of using iodized salt.
Your high TSH and strong fT3 do not make sense when rT3 is low. Your case is not fitting a well known pattern so far.
No lab results on TRT? Too late now to check LH/FSH, they–>zero.
With thyroid problems we see many who simply cannot absorb transdermal T products. With your thyroid profile so far, could swing either day.
Transdermals are highest cost and absorption is unpredictable and variable, also having the highest T–>E2 potential. Self-injected T is least cost and 100% absorbed. Most need an aromatase inhibitor [AI] to manage E2 at an optimal level. Injected hCG prevents the testes from, shrinking and a possible low level 24x7 ache.
Please to the reading and reread my posts to see what you missed drinking from the fire hose.