Welcome to healthcare magic forum.
Did you have lack of period anytime previously over a period of 3 months??
Some people might be not having periods for months together because of hormonal
disturbances...I would advice you to do a home urine pregnancy
test done to rule out pregnancy first...Than you can consult a gynecologist and she would put you on some medications to regularize your periods..
Your Symptoms indicate that you might be having GERD
which requires treatment with antacids..
Hope this helps..