I have what feels like a wave of pain that comes up from midline area and keeps moving up into my chest and moves into my arms and hands. I immediately afterward I get so hot all over and it disappears in 2 or 3 minutes. it may happen 5 or 6 times a day. I also experience at night, waking me from a deep sleep. I have to bathe in cool water. I am 73 yrs old, been thru change of life and had a partial hysterectomy over 40 yrs ago, help please this is driving me crazy! I have acid reflux really bad, and thought it might be related to that in some way.