Hi....., Hypothyroidism is a common endocrine disorder resulting from deficiency of thyroid hormone.... Yes it is possible to have hypothyroidism without any symptoms.... And it is termed as asymptomatic hypothyroidism or subclinical hypothyroidism..... The treatment goals for hypothyroidism are to reverse clinical progression and correct metabolic derangements,.... Levothyroxine is the synthetic thyroid hormone and it is the standard treatment of hypothyroidism....Consult your Physician for further evaluation and treatment....