Thanks for writing. Sorry to hear about these issues with dairy.
From what we know about HIV and lactose intolerance, it seems to develop later-on after HIV diagnoses (not right away).
Regarding your HIV tests… 8 months is more than enough time for your tests to be accurate. If you’re testing non-reactive 8 months past a possible HIV exposure, we would say you can be very confident in those results.
Lactose intolerance is very common, and can occur suddenly even in people who have never had problems with dairy before. We know this can happen as people get older as well.Check out this page on Healthlink BC for more information.
If you find that bloating and gas are becoming significant problems for you I would reccomend making an appointment with your doctor, or going to a walk-in clinic.
Hope this helps. Please leave a comment to let us know if this answers your question or if you need more information.