When I do little intense excersise. I feel too hungry so I eat sattu and oats and some other foods as well. But what happens it seems like gas is formed and then it raises to my head. And my head starts to pain and it continues like any thing. And it only heals when I go for sleep overnight and wake up. Or sometimes headache is too much that I end up vomiting and then it heals within hour or so. I don't feel bloating in my stomach. What should I do? Any suggestions would be helpful.