what happens when you dont take your thyroid meds

If you are hypothyroid—whether due to Hashimoto’s, Graves’ disease treatment, thyroid surgery, or congenital hypothyroidism—failing to take your thyroid hormone replacement medication (i.e., levothyroxine, or natural desiccated thyroid) can pose many risks to your health.

Blood pressure irregularities, elevated cholesterol (including treatment-resistant high cholesterol), and increased risk of heart disease
Low body temperature; feeling perpetually cold
Fatigue, muscle weakness, or joint pain
Memory problems

Weight gain; inability to lose weight despite diet and exercise
Infertility, miscarriage, stillbirth, or premature labor
Menstrual irregularities
Loss or reduction of sex drive
Hair loss
Swollen hands, feet, and face
Growth of thyroid nodules, increasing goiter size
Increased risk of infection