Hello. Writing an update for those interested in T3 only experiences and struggles. About three weeks ago I started T3 only. I had low storage of T4 so I skipped my morning dose of Levothyroxine and started 25mcg of T3 before bed that evening. Had I been on my usual dose of Levo for several months/years as I had for the previous 10 years then I would have skipped the Levo for a longer period before starting the T3.
At first I took off like a racehorse upping from 25mcg of T3 to 50mcg but then backed down to 30mcg and waited for the usual hypo symptoms and T4 to deplete. In the 3rd week I went up to 50mcg. I'm still feeling quite hypo but this is more tolerable than how I felt on T4/T3 combo or NDT and the myriad of symptoms on T4 only.
Some of the struggles I've experienced going T3 only are blood sugar problems. On 30mcg I was waking around 2am-4am with blood sugar problems and felt like my stomach was eating itself alive. It's gotten better since increasing. When my T3 is low it elevates my blood fasting glucose levels. Most importantly I've been making a large effort to eat enough calories daily, specifically good carbs.
I've been tracking my temperature and heart rate. Resting heart rate has been elevated into the 90s at times and around 100-105 in the mornings when my T3 is low. Not sure if it's due to blood sugar or low T3 causing stressy sleep. I feel good when I take the T3 close together in the morning but it tapers off and start to feel tired so I've come up with a dosing schedule 4 times a day at 11pm, 7am, 12pm, and 6pm, thanks to some T3 circadian examples on thyroidpatients.ca . Possibly at some point I can move to 2 doses per day as long as my heart rate stays in an optimal range.
To sum up my experience over this three weeks I'm still having hypo symptoms but my mood is improved, I'm not dragging my body and for the first time in ten years my body temperature is optimal.