Actually wondering if I am Bipolar now which is masked by brain fog in my fatigue periods. T4 is 17.7 and Tsh is 5.5. This isn't changing much at the moment. Currently taking 50mg on 5 days and 75 on two days which seems to avoid racing mind and too much fatigue. doctor has decided to refer me to endo here and I found a recommendation so hopefully will help. I want to do the iodine test too and hoping endo will do this to see if I need iodine. Can anyone relate to any of this? How complex this all is.