please can someone help, im 44 years of age and am going through hell every month, I am having my period every month which seem to be heavier and not lasting as long, but when they are finished i have a day where i have a sensation of butterflies in my stomach on the left hand side which builds up and then i am violently sick for the rest of the day, this knocks me off my feet and i have to spend the day in bed, then a few days later i will have a migraine! I have been to my GP, with no joy and just need help.

Thanks, Sally