How Will the Keystone XL Pipeline Be Built? If President Obama approves the hot-button Keystone XL pipeline, TransCanada has plenty of work to do to build the Montana-to-Nebraska connection. This is how its engineers plan to do it.
Side effects of a dose of levothyroxine that is too low would be similar to the symptoms of hypothyroidism. Symptoms of hypothyroidism, or underactive thyroid, include fatigue, weight gain, and constipation.
Too much levothyroxine can also affect your digestive tract. Many people lose weight, despite a normal or increased appetite. Excess levothyroxine can also cause more frequent bowel movements or diarrhea, as the hormone speeds the movement of food through the digestive tract.