Late puberty and development caused by hypothyroidism
I (18 male) was diagnosed with hypothyroidism and celiac disease almost exactly three years ago. My puberty was late and I had very little development until getting my treatments, and only then got a proper voice change and growth spurt. I grew 10 cm after my diagnosis, but I've gained little to no height in the last year, so I'm afraid the catch-up has already happened.
I still have these problems:
- underdeveloped jaw, lack of masculine facial features. I look too young and not masculine at all, even though I got rid of my bloating and puffy face after medication.
- No visible Adam's apple despite nowadays having a normal male voice
- Low libido
- Infrequent morning erections
- Low natural muscle mass (although I have had ok progress from weightlifting, but still many men have more muscle mass without any training)
- Very little facial hair growth and also no chest or stomach hair whatsoever
- Narrow shoulders and overall not feeling much like an adult male.
I take 175µg of levothyroxin. I don't think I experience any direct consequences of hypothyroidism anymore (like the fatigue or bloating). My most recent labs from January: Free T4: 23 pmol/L, TSH: 2.8 mIU/L. I've never had my testosterone checked but I guess it must be quite low.
When I got my diagnosis, my bone age was measured to be a couple years younger than my chronological age. Can my problems still be fixed with time and am I still somewhat mid-puberty despite having stopped growing? Should I or could I do something? I think my puberty has been very mild in every way: for example I've had the least acne out of everyone I know and I had way too little teenage angst. My 16-year-old brother is of course ~15 cm taller than me, although fortunately I'm now only one standard deviation below the norm in my country (I used to be -2σ in my age group).
Has any one of you had their puberty clearly delayed by hypothyroidism? Did things continue to develop after 18?
Also, is it worth getting my testosterone checked, or is that a bit of a stretch? I have no idea whether doctors would even consider any kind of hormonal treatment, or if that's only for more severe cases.
If my issue is just a "ruined" puberty caused by chronic diseases, is there anything that can actually be done or is it too late?