Apart from the things that other people have already mentioned I have noticed that my nails are really strong now and growing much faster than before and this morning I noticed that my eyes look all “sparkly” and when I looked closer I could see that the whites of my eyes aren’t all bloodshot any more! I hadn’t even realised my eyes looked dull before.
The best thing has to be not having to take a hot water bottle to bed every night of the year (yes, even in summer!)