I have problems with my stomach.Between meals i feel irritation in my stomach,i get a lot of saliva in my mouth.And also in the morning i have a bitter taste in my mouth,very much saliva,feel week and my stomach is iritated.I know i have hyperacidity,and i am on diet,but it doesn't improve.Especially when i have to focus at college for a long time,or i am in a tense situation for a long time,i experience this symptoms.Do you think is more then hyperacidity?