After RAI treatment in 1989, I took 150 /175 Levo for 25 years, and felt pretty good, apart from libido being zilch. Then wham in 2014, I felt so ill I was housebound some days. Finally started on T3 in May 2016, and my life has come back !
Has anyone else experienced this? Levo just not working any more? And why would it do this?