Re: advice for newbies
My advice is ~
Don't be so quick to attribute every single symptom to your thyroid. Some problems have other causes, and so, probably not every single thing will be cured once your thyroid levels are optimal.
For example, if you eat mostly junk or processed food, or if you constantly eat too little (under 1200 cal/per day is too little), thyroid hormone won't fix that. If you routinely get less than 7 hours of sleep a night, you probably are never going to feel terrific, no matter how good your thyroid levels are. If you're a completely sedentary person who eats everything within reach, you likely are not going to stop gaining weight and won't ever feel like taking on the world.
In short, just because it can be caused by thyroid, that doesn't mean that it is caused by your thyroid.