Aloe Vera tablets are also supposed to help, so you could try those if you can't face the doctor's.

I might well try that -- thanks for the suggestion. I will probably end up going to the doctor eventually but I can't face it so soon after going for something else; I find if I go to the doctor for more than 2 different things within a short space of time I get less and less useful answers because they end up just basically saying "You're a neurotic bint, go away". Or "We think this is all stress-related, get less stressed."

Thank you for sympathy too. Much appreciated.