Hello sir....
Your history most likely seems that bumps may be due to
ALLERGIC FROM FOOD....
OTHER POSSIBLE CAUSES:
** allergic from certain medication
** smoking
**Mucocele(trauatic injury to minor salivary gland )
** stress, anxiety
** hormonal changes
**iron deficiency anemia, chron"s disease(gastro intestinal disturbance)
Next Steps
Kindly visit nearby dentist to rule out the underlying cause....
Health Tips
As you have history of a
smoking, it is better to visit dentist immediately to rule out the cause