Your symptoms are suggestive of post-meal autonomic symptoms, most commonly related to gastric distension, acid reflux, or anxiety-related autonomic response. In young adults, this is usually functional (benign) and related to digestion or autonomic response rather than heart disease.
Next Steps
If symptoms persists you will need blood investigations and ultrasound abdomen for finding underlying issues
Health Tips
Avoid high carb,spicy foods,eat lesser quantities but frequently,carbonated drinks,adequate hydration.Contact me anytime on practo for further consultation