I've just got my latest blood results following T3 increase from 25 to 31.5mcg. I'm pasting also my previous results for you to comment and advise as I'm quite concerned about my T4 decreasing since I started T3 and currently it's below the range. Generally I feel much better than when I was on 150mcg T4 only when my blood results looked better. I have even managed to lose 7kg that was impossible before. My mood is also much better.
22.11.17 - 31.25mcg T3 + 100mcg T4:
TSH 0.009 (0.27 - 4.2)
FT3 5.34 (3.1 - 6.8) 60.5%
FT4 11.3 (12 - 22) -7%
14.08.17 - 25mcg T3 + 100mcg T4
TSH 0.024 (0.27 - 4.2)
FT3 5.2 (3.1 - 6.8) 56.8%
FT4 14.4 (12 - 22) 24%
15.05.17 - 12.5mcg T3 + 100mcg T4
TSH 1.6 (0.27-4.2)
FT3 3.71 (3.1-6.8) 16.5%
FT4 13.49 (12-22) 14.9%
20.12.16 - 150mcg T4 only
TSH 0.12 (0.35-5)
FT3 4.3 (2.6-5.7) 54.8%
FT4 17 (9-19) 80%
Please comment and help me understand what is happening with my T4 levels. Is that anything to worry about? Should I correct it by increasing T4?
Also my endo is concerned about very low level of TSH saying it will cause osteoporosis.
Please advise. Your help is always greatly appreciated.
Written by
GraceB
To view profiles and participate in discussions please or .
T4 is a pro-hormone which converts to T3. It is quite common for FT4 to be lower on Levothyroxine + T3 combination than it is on Levothyroxine only. It's not necessary for FT4 to be high when taking T3 direct and as long as FT3 is good you are optimally dosed. FT3 5.34 is good, just a little shy of the upper third of range.
TSH 0.009 is very suppressed. Most doctors and endos are concerned that suppressed TSH increases the risks of osteoporosis and of developing atrial fibrillation. I argue with my endo about this and have said I prefer to feel well today with sufficient T4+T3 and accept that it may increase my risks of developing adverse health events in the future. A paper I'm fond of quoting finds no association between TSH and atrial fibrillation but doesn't address osteoporosis. press.endocrine.org/doi/abs...
Haha everybody is different! I was previously on 150mcg T4 only and though my hormones levels looked pretty good I was feeling awful and symptomatic. I didn't tolerate T4 well from the very first tablet. Adding T3 improved my symptoms I'm much better now, do not have headaches, migraines, heart problems and finally lost some weight.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.