Recently diagnosed with Graves. I am now on 20 g of methanezole 2x a day and a beta blocker 2x. This is the beginning of my third week on meds and still feel very tired and having headaches. Have blood work in two weeks and then reevaluated. I just feel miserable most of the time. Almost like I am walking around with a mild flu. When do things start to get better or do they? Really getting depressed with inability to function normally. Usually very active now vert fatigued. I am 69 and until I got this I felt wonderful, now feel even older. Thanks for reading helps to vent.