I was dagnosed with Hashimoto's in about October 2013. Have been taking 100 Levothyroxine since Jan 2014 but still feel very unwell a lot of the time. Have had various blood tests but GP says they are within the normal range and if anything my thyroxine levels are slighty high. I haven't seen an endocrinologist. I am about at the end of my tether with feeling tired and dizzy with palpitations and the constant foggy headache. Any suggestions as to what to do accepted. Can't go on like this.