2months late menses 2 negative pregnant test. now having bloating stomach pain acidic feeling. i have been under a lot of stress, could it be due to this?

? Reflux: Your description sounds like reflux. Try some Tums (calcium carbonate) and see what happens. If no improvement, see a doctor.

Stress can delay: period. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy.