Galen has the same terrible affliction as Kara Goucher, Hashimoto's disease. An average of 1 to 1.5 in 1000 people have this disease. It occurs between eight and fifteen times more often in women than in men. Though it may occur at any age, including in children, it is most often observed in women between 30 and 60 years of age.
The most common symptoms include the following: fatigue, weight gain, pale or puffy face, feeling cold, joint and muscle pain, constipation, dry and thinning hair, heavy menstrual flow or irregular periods, depression, panic disorder, a slowed heart rate, and problems getting pregnant and maintaining pregnancy. (As per Wiki).
I can see why this might be a problem trying to run fast.........
This is a good article about their dodgy doctor - might have been posted before because I remember reading about this a while ago.
https://www.sciencebasedmedicine.org/is-thyroid-replacement-a-performance-enhancing-drug/
And Sally slates Steve Magness as unprofessional / sh*gging one of the female athletes at NOP etc. as expected.
I think this story has more to give.