Hi, i have few reddish color lump in the back of throat, also my neck feel stiff all the time, sour mouth constantly, i have been diagnosed with gastritis 5 months ago and I m on med Nolapaza twice a day, I follow strict diet but in past two months started with upper stomach pain and non stop sour mouth, sometimes i feel better for a week or so but than it follow with sudden pain attack and it last for couple of days. Your advise will be appreciated here