Blood test last October and was started on 50mg Levothyroxine in November. It made me feel a bit spaced out. Went for another blood test in December and they upped it to 75mg. I felt so weird and miserable and immediately had such bad brain fog that DH thought I was going senile (his words!) and insisted I stop taking it after a few days, when I felt as before again. I've tried various herbal tablets bought online and am currently on 750mg of Ashwaghanda Complex (high strength, Ksm-66 if that means anything). Still feel tired and have slight memory problems but I'm not sure if that's still from long Covid, which I had previously. I've got another blood test soon but wondered if anyone has had success with any herbal prduct?