Hello. I was not feeling well yesterday, had a general nauseous feeling. I ended my day with vomiting and crampy feeling in my abdomen. When I lay on my side it felt better. This started yesterday on my third day of menstrauation. I am 45 years old and had my second child last January 2012. I am feeling a bit better this evening but still had a slight crampy feeling during the day. I ate a spoonful of rice last night and nothing else. I was able to sleep though the whole night. Today i felt nauseous a few times If I smelled something strong and I vomited a few times but it was just saliva and water. I ate almost nothing this morning, I drank two bottles of gatorade which I think helped. I also took two advil in the afternoon and two advil now. At the moment I still feel slightly weak and I still have a pain on my right side. I know the temperture has been hot today in my city, and I was out in the heat yesterday so I do not know if this has anything to do with dehydration, menstrual cramps, heat cramps or perhaps a cyst in my ovary? Thanks for your help!