Can you suddenly become lactose intolerant?

Hi, I had a small amount of milk this morning (about 2-2.5 hours ago), and about 1.5-2 hours later after that I had a bad case of the hiccups, complete with spitting out froth and what I thought was curdled milk (sorry for the graphic description) After a while it got worse to the point where I barfed what I estimate to be the quantity of milk I drank this morning, and it was curdled. I know it's bad to throw up with the lapband, but this was more like regurgitating. I also had problems yesterday when I ate cream of whatever soup. My question is can you become lactose intolerant all of a sudden, I have never been before? Has anyone experienced this? And, if so,  is it a permanent or temporary (how long?) side effect of the surgery? This is really weird.

I'm guessing yes.  I wasn't before RNY and was completely and totally intolerant after, whic put a real crimp in my Carnation Instant Breakfast protein intake plan.  Now 6 months out, it is better but I still lay low on dairy, I use skim milk when I use milk at all and mix water, not milk, like before surgery with any kind of cream soup.  I had Broccoli and cheese sopup at Panaera Bread for lunch this week and it all came back.  I believe it was too creamy.  Broccoli and cheese on a baked potatoe at Wendys and Arby's don't bother me at all.  Go figure.  Also I learned by barfing, that cheddar cheese works, american processed (yellow) cheese is a guaranteed barf; process oil and fat content. So in summary, my guess is, the milk could have been bad or going bad, but you may have a newfound intolerance that may or may not improve with healing/time. Good luck wit that.

Yes. Entirely possible & not weird. I dumped on skim milk when I got home from the hospital. I switched to Lactaid brand Skim Milk & other lactose free products & have not had a problem since. After  15 months, I am no longer lactose intolerant. Jay  

I am not really in tune with my body.  It never occurred to me that the reason that I have bad gas and cramps after eating ice cream, milk, cheese was a lactose thing.  I swiched to the lactose free milk and all is better.  It has also slowed my ice cream eating.  I never had any of these issues before the surgery. Scott