I'm on 75 levothyroxine was on 100 also hasimotoes . My thyroid seems to swing from hypo to hyper . I still get unwell with exhausted,strangling neck,swollen joints, shooting pain in head, ringing in my ears ,sore face ,snappy , brain fog etc. been to see doctor who is sending me back to endo after 2 years for second opinion . Doctor just asked me are you happy ? If second opinion is fine I think you have anxiety . I said how is that anxiety with all these symptoms - I've only felt well for about 2 weeks in the last 2 years - any advice greatly received . I do not have blood results at the moment ,just told there fine.