Is it possible to develop a lactose intolerance?

Yes, it is possible to become lactose intolerant. It is very common during pregnancy to become lactose intolerant.

Maybe keep a food diary and write down everything you eat and see how you feel after each meal (whether it includes dairy of not)

Do you feel this way after just drinking milk or is it the same with yoghurt/cream etc?

Maybe your stomach is just having an 'off-day''. Sometimes this can happen, but I think your best bet would be to keep a food diary and then you can get an accurate answer of what irritates your stomach and what doesn't.

that's even obtainable which you have had lactose intolerance all alongside, yet your indicators have been too gentle which you would be conscious. So in case you presently finally end up having a lactose intolerance, that's proper to stay away from dairy and stick to those that does no longer reason you tummy issues :-)

Yes. In fact most people who are lactose intolerant, aren't born that way. It's usually a development later on in childhood, or even adulthood.