First of all yours is not a subclinical hypothyroidism
, but a full blown hypothyroidism as the TSH level
is 25 and the main thyroid hormones are low. Taking thyroid supplement is the only way and there is no side effect at all if taken in appropriate doses. For your current symptoms you will need 4 to 6 weeks minimum to subside. All the symptoms are actually due to increased TSH. So recheck your TSH following 6 weeks. Your doctor will suggest you further adjustment or continuation of the doses. I hope you understand. Take care.