Ah, OK.
TSH (Thyroid Stimulating Hormone) is the hormone your pituitary gland releases to stimulate your thyroid to produce triiodothyronine (T3) and thyroxine (T4). With hypothyroidism, if your TSH levels are high, it means that your body thinks the thyroid is not producing enough T3/T4, so it pumps out extra TSH to get it to produce more.
I had to repeat some blood testing (to check for T3, T4, and TSH) as a follow-up to my wellness check to confirm that that what my body was doing. I am on L-Thyroixine (T4) supplementation to treat that, and have to get my blood checked every 6 weeks to monitor. Once the proper levels are established, then it will be a matter of getting checked every 6months - 1 year. I haven't lost any weight, but I have noticed that my hair is growing faster! And I initially had crazy dreams for the first week or so of treatment. I hadn't even noticed that my hair had essentially stopped growing until it started growing again. So the symptoms really can be subtle.
Wish you the best of luck! As it was mentioned earlier, if it is your thyroid, it should be easily treated, and more than likely, your quality of life will be improved with treatment.