In my last pregnancy, I couldn't get enough of the smell of Flash One for All cleaning stuff and Mr Muscle Kitchen Spray. I sooo wanted to eat them! I used to carry round a cloth soaked in them and sniff them and I'd actually salivate, it was so so weird! I did mention it to my midwife as someone told me it can indicate deficiencies in something and I had my iron levels checked, but they were fine! I was also addicted to Gaviscon tablets, the chalky ones. I couldn't get enough of the feeling of them on my teeth!!