been on levo for about 2 years, TSH just stuck around 3.5-4 even though it’s supposedly in range. but i felt terrible - brain fog, crashed by 3pm, exhausted even after sleeping forever. my free T4 was barely above the minimum so my endo was like ‘just increase it’ but i was already at 75mcg and going up made my anxiety absolutely spiral. so last month she suggested splitting it instead - 50mcg in the am, 25mcg at night. literally the simplest change and TSH dropped to 2.1 within 6 weeks, free T4 settled in the middle of range. woke up different, no jitters, no mood weirdness. idk if it’s too early to say but i’m tracking everything obsessively now. fwiw anyone else have splitting the dose work when just upping it didn’t? how long before you felt actually human again?