Does anyone else experience cramping before a hot flash? I'd entered menopause by the time I was 48. The doctor put me on HRT for 10 years, and I've been off Prempro for five years. However, I still get hot flashes, mood swings, all the usual symptoms, except before every hot flash I experience severe cramping and sometimes I get so nauseated I vomit. They only last a minute or so, but they do happen before every hot flash.