I have been taking .75 Synthroid for years which kept my thyroid level at .1. I felt great and was at normal weight. I quit smoking and my system seemed to just go haywire. My thyroid level went up to 3.3 and I have gained a lot of weight, tiredness, trouble breathing since. It has been 1 1/2 yrs. since I quit smoking and thought everything would settle down but it hasn't. My doctor says 3.3 is perfect. Does smoking effect the thyroid that much?
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.