Subclinical hypothyroidism. Undergo.

I am a female aged 39 living in Thailand for last 2 years. I am detected with subclinical hypothyroidism. The attached are the last three sets of test results over a period of 6 months followed by a recent antibody test. The reference levels are given in brackets which are standard for Thailand. As can be seen, the THS dropped below the upper limit in the second test on 25th May but again increased in the last test on 30th September. I am putting on weight, loosing hair, sleep for 10-11 hours a day and am feeling bouts of depression for last 8-9 months. The doctors here do not suggest any medicine for thyroid yet and suggest only to reduce weight and for a healthy lifestyle. I thought it would be better to consult an Indian specialist. Kindly suggest a treatment that I should undergo.