How do you stop palpitations and insomnia from T3? Taking 25mcg T3 and it's helping my mood, energy, brain fog feeling warmer just overall feel better but it's giving me terrible palpitations and insomnia the palpitations don't bother me in the day but when I lay down to sleep I can feel my heartbeat and it kind of jolts my body and I fall asleep but just wake up after a few minutes . Magnesium doesn't help,vitamin d doesn't help, more calories doesn't help. What can help with this because I need to take T3.