I am astounded by how stupid some of these replies get. Maybe it is a stomach bug! Jesus. When I started with levo it was 25 mg. Within days I could not stnd the heat, my eyes hurt a lot, I felt like I was in an oven and cooking, I could hardly stand up, was very dizzy, felt like I was in a trance. I came off of it quickly and this took days to go. I was suicidal with how awful I felt. A while later I went ba\ck to it and tried again. I felt very sleepy all day, like in a trance, could not work, could not get on with anything, even walking across a room was hard, yet at night still had trouble sleeping. This switched to being wide awake and unable to relax at all day or night. I would stay up all night watching tv or doing housework or cooking. Yet feel tired in the mornin g and would still not be able to sleep. I FELT A LOT BETTER ON THE NATURALL THYROID. When I ran out of the natural thyroid I reluctantly went back to this one. I became very nauseaus, like I wanted to throw up, had a horrid taste inmy mouth, and sort of always thirsty, my arms and legs hurt a lot. I COULD NOT WORK. I have noticed that when you ask for people's opinions on these forums they either change the subject or they try to find a way to blame you for it. i.e. it must be YOUR fault because you had some soya! A tiny yoghurt would have no effect.And it would not explain you having this for several days or more. I also felt after a while I felt very anxious and depressed and mentally lethargic. My previous symptoms had been brain fog, some pain in arms sometimes and feeling cold. In other words when I took no medicine at all I felt a lot, lot better and was able to function. A few days ago I bent over to pick up something - a small thing, nlt somthign bulky or heavy - and woosh my back went and I was in agony. This has never happened to me before. I noticed too that the chemist gives us levo from, different manufacturers and the symptoms can vary accordingly.
I have spoken to at least 200 people over the last few months who have said somethign similar. They feel awful on levo and better on the real thing.