I am experiencing chest and upper abdominal are discomfort, followed by hot flashes, ending with chills. Lately I started to have headaches, nausea, and constipation. Due to the chest discomfort a test was done that shows calcium in the aorta but i understood there is no heart attack symptom. Are these symptoms of perimenopause or something else?
Hellhole the hot flashes can be from menopause, the other symptoms you mentioned sound more like either gastric acid reflux or an H pylori bacterial stomach infection. I would screen you for H pylori and start you on Pepcid AC or Santa.  If the H pylori screen was positive, you'd need a course of two different antibiotics to clear that.