My tongue feels bigger today. what might cause that?

Inflammation: If you have normal blood pressure at age 34, then your tongue may be swollen from inflammatory causes such as temperature or chemical triggers in hot spices. You may have a food allergy causing the tongue to swell. Some people take blood pressure medications in the class called ace inhibitors like lisinopril. There is a condition called angioneurotic edema of the tongue due to an enzyme deficiency.