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I used to drink milk almost every morning with chocolat and never have had any problem. But after my 30's I start to have some effects after eating pizza (with lot of cheese), or hamburguer (with cheese), or icecream (this was the worse of all).
I took 6 months to a year to realise I could be becaming lactose intolerance. So I make the test of cutting all milk and milk based food and drinks... and voi-lá! The effects had stopped!
Years later, participating on a self-improvement course here in Brazil, and for the most "coincidental" (but I believe there's no such thing as "coincidence") I found like four participants in this course that were lactose intolerant too!
And what we realized we had in common was problems with mom and/or dad!!
It looks like the development of lactose intolerance in adulthood could be connected to an internal rejection of maternity or paternity. So that you have so much inner rejection or great intolerance about your mother or father that you manifest that physically in your body, rejecting lactose (that is something extremely connected to maternity).
I wanna know if any of you have this perception too and how can we revert this rejection/intolerance we may have internally about our parents?