Has anyone else had experience of this? My 13 year old DD has tended to go through phases of nausea on and off for the past few months and I've recently realised it does seem to happen just before a period. I've never had this symptom myself, but I guess maybe it's rather similar to pregnancy sickness? The nausea seems to last a few days each month. I usually give her ginger biscuits which do help but I hate to think she'll have this every month for years to come! Any advice, please?