Oh I did not know about this....and beside excercise what else we should so for a faster digestion? Is there any med or home made remedy? For example there is a product called Hajmola.
A typical symptom of heavy eating, can be indirectly said, over eating. You must be 'non-used to' of heavy stuffs which your metabolism couldnt handle on the go which creates problem like headache. Headache is simply caused when heart transfers most of the blood to abdomen to digest the heavy stuff due which head couldnt gets its due.
Again, when you exersice you feel good. Its because exersice speeds up your metabolism and by which the food gets digest most faster which in turn helps heart to send blood to all the body parts more easily and head gets its due of the blood very fast. Your moods change and you feel good !!!
Thats why its said "Exersice not only to keep your body fit but also to keep your brain and heart in sound state"
I can explain this thing in several pages but m sure that you've understood the core issue.
best,