[Johnny_Lim]

I would think not everything is due to past kamma. There is a smile in the sutta that says if we put in a teaspoon of salt into a small cup of water, the water will be undrinkable. But if a similar amount of salt is mixed into a large amount of water, we won’t be able to perceive the saltiness. This implies that wholesome kamma could dilute unwholesome vipaka to a certain extend. The Buddha has the greatest virtue and yet He had to suffer certain ailments. If based on the above logic, it does not make sense for Him to suffer some seemingly normal discomfort. i.e the Buddha’s own wholesome kamma would have drastically reduce or even averted the ailments.