Hello, I am new here. I have been on a low dose of thyroxine for about two years and at first it seemed to be helping a lot. I lost a stone without dieting mainly from around my middle and I felt other symptoms were going as well. However over the last six months my thyroid symptoms have returned, particularly tiredness. I feel if I do something one day I will have to rest the next. I have been back to my doctor who has increased my thyroxine. However he says that it is unlikely to help with tiredness. Has this been other people's experience?