Suggest Treatment For Several Episodes Of Flushing, Nausea And Diarrhea

Question: Yes so I have had several episodes of flushing accompanied by nausea and diareha. The flushing is like after taking a niacin tablet. And them goes from flushing to the feeling of ice running thru my veins. No cramps or pain but feel extremely nauseous to where it is hard to talk. They seem to come out of the clear blue and the last two times were alleviated at the er with Zofran sp? and an IV. My face does turn pretty red occasional when I drink wine not always tho. The feeling is so uncomfortable (not painful) that I think I start to panic and that just compounds everything. The first episode was about a year ago and I did throw up once, thought I just had the flu as I was laid up for a good 24 hours just feeling yucky and not hungry. These last two episode I did not throw up but felt like it. The happened at work, I was feeling fine, went to the bathroom on my break had a little diareha and then the wave of nausea hit and then the flushing, ended up in an ambulance and at the ER. I can sometimes feel the early signs of the flushing and talk my self down, but others time nothing seems to help expect anti nausea meds and the IV has me worried, I am under a little stress.

I started menopause when I was in my early 40s went on hormone replacement therapy for a year, got pregnant, and had my 15 year old when I was 44. Breastfed for two years and then went right back into menopause. That was 15 years ago, can menopausal symptoms show up out of the clear blue after all that time? Does it sound like panic attacks or a possible endocrine issue as the ER Dr mentioned last nite? Whatever it is what can I do to stop the episodes before they become full blown and how to eliminate the nausea once it sets in?