I have had a rough week physically. I started feeling unusually fatigued and exhausted last Wednesday. I took a day off from work to try to sleep and recover, but my fatigue appeared independent of sleep. I was so lethargic this weekend that I booked a doctor's appointment - fearing lyme or mono. I went to a Canadian doctor for the first time, which was pretty smooth, uneventful, and efficient. The doctor's greatest concern was that the blood tests would be inconclusive.
Anyway, the tests came back yesterday, two days after they were administered. The mono test was negative; the only anomaly was quite low ferritin - a protein which is used to store iron for availability later. Typically low ferritin means low iron; my ferritin level was 17 ng/mL, whereas the blood test had a healthy range of 24-453 ug/mL. I don't know where the healthy reference comes from. Curiously, hemoglobin and red blood cell counts were normal - i.e. I am not anemic. My doctor speculates that I am dealing with low iron, and I will discuss in a followup on Tuesday. I haven't had any overt nutritional or iron problems in my past (though a healthy stream of burritos no doubt contributed), but this was brutal. Getting out of bed was a battle, and I felt like death. I have been commuting by bike - 7-8 km ride, 20-30 minutes depending on traffic and whether I'm going downhill (to work) or uphill.