I've been pretty low carb (less than 30 net carbs per day) for the past week or so after being paleo for over 1.5 years. The past few days, I've had issues with a heavy feeling in the gut, almost like having a rock in it. Tonight, after I ate dinner (beef brisket, eggs with mushrooms, and some roasted zucchini), I had a gurgling sensation in my stomach. Am I doing something wrong, or is this just an adjustment period? Should I consider investing in some digestive enzymes?
EDIT: I'm going VLC because I still have a spare tire of fat and loose skin around my gut, and I've had it for the past year. I'm going to extremes to try and get rid of it. I don't want to stay VLC forever, just until I can get rid of this unsightly flab. Were it not for the fat right there, I could wear a medium; as it is, I have to wear a large to keep my rolls from showing through.
In my opinion, you should stick it out for a week or two more and see how feel then. It will take your body some time to adjust to the higher fat intake. It is likely that you'll need more that one week to adjust. You could try digestive enzymes - but if you've already been paleo for over a year without problems, I think your current discomfort is more likely part of a normal adjustment period.
Having said that, VLC is not for everyone. Make sure it fits your goals, and don't stick with for longer than a month or so if you feel bad. Again, just my two cents.
I don't have much experience with VLC, but I get the "rock in the stomach" feeling relatively often. I'm not sure if it's gas or what to attribute it to. I would just encourage you to drink plenty of fluids even with the rock feeling. Try to keep things moving.
Not sure what is going on in your case, but I'd recommend hanging in there for awhile longer. When I went from a high carb SAD diet to paleo (I now average around 60-70 g carbs) it took me about a month to really adjust and feel good. I imagine there would be a period of adjustment going to VLC too.