I am fussy about my diet and straining my voice. I know sounds a bit over the top. But I'm not as bad as I used to be. These days I don't drink alcohol for five days before a show - very dehydrating for the vocal cords and all that acid reflux. I used to ban it for a fortnight. Nightmare.
I was so obsessed by this problem that I was thinking about it all the time - when I woke up in the morning when I went to sleep at night - and that went on for eight years.