hi julesguk. im on evorel conti patches and just coming into my 6th week. i too have been having heartburn since being on them and i am severely constipated!I know that the patches are better for you overall but i dont believe they have no impact on you digestive system, hence the side effects mentioned on the information leaflet, feeling sick being one of them. i am hoping this side effects will lessen soon but if not i will be changing my hrt.