I mean, this does seem to coincide with my period. I'm just over the heaviest part of it now and I have a headache (like a withdrawal headache, intense pressure), some nausea and the slight runs (sorry tmi). I'm also intensely hungry. Last night I had a grumbling pain under my right rib. This comes and goes generally and only lasted about 15 mins. Once all of this goes away I forget about it until the next time but when it's happening I start to worry cos I feel so ill! Does anybody else get these symptoms?