Dh has been generally not well for...well, ages, now and after much nagging went to the GP. His thyroid test seems to show he has thyrotoxicosis - the most likely cause of which (googling) is something called Graves' disease (it can also be a tumour - not thinking about that though). It's hyperthyroidism - as opposed to hypothryroidism (overactive, not underactive).
He hasn't been back to see the GP yet (he looked at his results at work, hence the heads up on his results) - but I'd be interested in any personal experiences, please?