no food cravings, but i was driven mad by the desire to smell certain smells!!!! i'll give you an example:
i wanted to smell the inside of caves that have water/slimey/mossey walls. i would be in heaven smelling the inside of a cold hot water bottle, the inside of a washing machine, i would fold a clean damp flannel in the morning and then smell it for hours lying in bed that evening, honestly i was driven mad for the desire of 'musty' water smells!!! I even rang wookey hole caves in Somerset 9 months into pregnancy to ask if they'd permit a large woman just to sniff the cave walls - how sad!!! and one more thing i wanted to do was bite/lick the Cotswold stone fireplace at one point that i had in my sitting room, my midwife reckons i had a mineral defeciency!!