Thanks, Siebe, for another excellent topic. I am making this a new topic in the Sutta Interpretations forum, since it requires study of suttas.
However, as I mentioned in the side panel, please do not pose questions just to me in the future.
Siebe is correct in saying that “Abhidhamma seems to analyse that bodily pain is Always kamma vipaka”.
So, the question is: Are some suttas saying that there could be causes other than kamma vipaka that lead to bodily pain?
I have not studied those suttas that Siebe mentions. So, it would be good to see whether the suttas SN36.21, AN5.104 and AN10.60, as well as Milindpanha (which is attributed to Nagasena Thero who lived about 200 years after the Buddha), say that there could be other causes.
In Buddha Dhamma anything in this world happens due to one or more causes. But for those causes to bring effects, suitable conditions must be present. This is discussed in the section “Patthana Dhamma”.
So, conditions play a key role in the Principle of Cause and Effect in Buddha Dhamma, which is Paticca Samuppada. I wonder whether those “other possible causes” are really conditions in this particular case. It is also possible that there is a totally different explanation.
Please do not hesitate to comment. I am still on travel and will be back early next week.