I’ve been treating elevated rT3 for several months with 25 mcg Cytomel daily. Labs were pulled. The results were perplexing.
TSH: 1.65 uIU/mL (0.450-4.500)
fT4: [Low] 0.80 ng/dL (0.82-1.77)
fT3: [High] 5.1 pg/mL (2.0-4.4)
rT3: 12.9 ng/dL (9.4-24.1)
The fT4 results were not unexpected, no surprise there. The reverse T3 is going down nicely, which was also expected. However I was surprised by my TSH reading. I was expecting it to be close to 0. My physician doesn’t seem to be phased by this and says that it’s normal. I am surprised that my dose of synthetic T3 hasn’t cratered TSH due to the feedback loop. Is there something else going on? It appears that my thyroid is still producing T3 and the addition synthetic T3 that I am taking is complementary to it. All labs were pulled after my daily dose was administered. Perhaps that may be why my fT3 looks elevated. I will retake labs before taking any medication next time around to verify this.
Looking strictly at the numbers, I should be hyperthyroid, but I’m asymptomatic in that department. No arrhythmia or palpitations to speak of. I don’t have an increase in resting heart rate or blood pressure from baseline. I don’t have elevated body temperatures. Haven’t experienced any sensitivity or anything unusual. My body temperatures have gone up to 98F to 98.6F on average, and morning temperatures are in the 97.xx range.
My symptoms in the OP on the other hand were all eliminated. This has changed my life. Feeling back to normal now. Would highly recommend to try this for someone in the same boat. I’ve been looking for an answer to my fatigue and overall decreased quality of life for so many years and it seems that I’m on the right track. Makes me wonder how/why I’ve waited so long.
My main symptom is exhaustion. I don’t feel like I have the energy or desire to do anything. I wake up feeling slightly less tired than going to bed the night before. Losing body fat is also a challenge. My metabolism appears to be slower, especially when compared to my activity level. No history of drug (street or prescription) or alcohol abuse. Hands and feet always cold.
RBC 5.6 (4.14-5.8)
Hemoglobin: 16.7 (12.6-17.7)
HTC: 48 (37.5-51.0)
Glucose: 86 (65-99)
Albumin: 4.8 (3.5-5.5)
Globulin: 2.3 (1.5-4.5)
AST: 28 (0-40)
ALT: 22 (0-44)
TSH: 1.8 (0.45-4.5) uIU/mL
fT4: 1.3 (0.82-1.77) ng/dL
fT3: 3.7 (2-4.4) IU/mL
rT3: 27.5 H (9.2-24.1) ng/dL
TPO: <6 (0-34) IU/mL
Thyroglobulin Antibody: <1 (0-0.9) IU/mL
Temperatures (oral thermometer):
9am - 97.56F (wake up)
12pm - 98.01F
3pm - 97.30F
6pm - 98.05F
9pm - 97.40F
Iodized salt on everything. Multi with 200mcg selenium and 150mcg iodine daily.