That image is not a lot of use. Type the results including ranges (the numbers in brackets).
Being skinny in your 20s is quite usual. If you have no clinical symptoms, you could try taking up heavy weight training and eating absolutely no junk whatsoever.
Nik77, your TSH is low but your FT4 and FT3 aren't high so you aren't hyperthyroid. Some us have a fast metabolism and burn off calories quickly. I was advised eating small frequent meals would increase weight.
I am not a medical professional and this information is not intended to be a substitute for medical guidance from your own doctor. Please check with your personal physician before applying any of these suggestions.
If you look at Yogis they are often very thin yet full of energy. Thin is so attractive, if you have plenty of energy could you just enjoy your lean build?
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.