3. Sudden Weight Gain
Suddenly gaining weight without any changes to your diet or exercise routine should always be cause for concern. It may very well be a case of an under-active thyroid or may indicate a more serious condition.
4. Difference In Taste Buds And Appetite
An under-active thyroid can mess with your sense of taste and smell, which may lead to a decrease in appetite.
On the other hand, hyperthyrodism speeds up your metabolism but your body can’t absorb nutrients at the same pace.