i think you should see your doctor just to make sure all is ok in general! i go every 3 months religiously….
i think about what you said about a lot of work for one little hormone all the time. to me it shows the Wonders of Hashem because it takes us so much longer and more work to do what Hashem does in a tiny drop and it makes me appreciate when little things go right when we don’t even think twice about it…it’s really amazing!!!