Sounds like me. Although my hair is ok, but the thin, brittle fingernails mean I have to carry fingernail clippers with me all the time, as the slightest bump and the nails will just crack and break into jagged teeth, right back to where they grow out of my fingers.

The problem with stopping thyroid meds is medical issues such as heart problems and much more. Although I am on meds for this and do not feel any better I still take them as I cannot see immediately what not taking them can do. I too have thin brittle hair and nails and always cold.

I have been taking levothyroxine for many years and my dosage is at 175. This drug does MANY different things for the operation of the whole body and to quit taking it would be hazardous to my overall health. To make sure I am taking the correct dosage, I have my TSH checked several times through the year and my free 3 and free 4 checked at least once a year.

I have been taking Levothyroxine since 2015 for Hypothyroidism and Hashimoto's Disease. If Levothyroxine can cause bone loss, for myself personally, I feel I don't dare discontinue that medication. There are other health risks that Hypothyroidism and Hashimoto's Disease can cause on the body if it is not kept under control. It's a choice each person has to make for themselves to whether to take Levothyroxine or not.😀

I, too, am on sunthroud after having half of my thyroid removed for a benign condition. At any rate, what is one to do! I see my endo in July and was diagnosed with OP in March. I know his answer will be that it is “fine to take”.
Having suffered 1 stress heel fracture scares me. Been on synthroid 11 yrs. I also had read that i5 contributes to bone loss.
Have all of your thyroid levels checked again. TSH, free T4 and even free T3. Question why you must take it.