When i eat late dinner i've headeck the next morning is it from the type of food or indigestion?

Could be both: There are several issues with eating dinner late. Eating a large meal before bed can cause heartburn (gastro-esophageal reflux) and indigestion, because you are lying down on a full stomach. Some people notice nausea, headache, and dizziness when they have gastro-esophageal reflux. Certain foods are more likely to cause these symptoms, such as a high fat meal, alcohol, and salty food.