Weird feeling

So as of now I'm due October 1st. So it's very early. This is my third child. My other two are 7 and 9 so it's been a while lol And I noticed the other night that I felt hot then cold like hormones were surging...Athens I had two days of flu like symptoms/ morning/day sickness. The weird part I'm curious about is that I feel weird like emotionally...hard to describe...earlier I was happy and now I'm hot and cold and feel kinda uncomfortabl emotionally. Anyone know what I mean? It's been at night when it's happend and I kind of feel like it's hormones. And ideas?