Even on Atkins you are supposed to eat 3 cups of vegetables at the start, and move up your carbs as time passes. That way you CAN stick to it for the rest of your life. Make sure you are drinking extra water, since low carb has a diuretic effect, and you can get dehydrated, as well as lose electrolytes. A supplement may be a good idea if you are below 50 grams of carbs, to replace your potassium, calcium, and magnesium. You also may want to use a bit more salt ( closer to 2300 mg ). These can cause some issues like headaches or constipation.
If you think it is constipation, try added fiber, until you can get more in your diet. Once you are getting colorful peppers, and lots of greens in your diet, your fiber should be right around where it was before. Some people who don't eat veggies a lot, find that getting there 5 servings a day is more fiber/veggies than ever before, and get gassy
The other option is you just are sick. Even on low carb it happens.
I've been on low carb for 4 years, and have never had stomach pain, constipation or headaches. It's just usually a trial and error period to find out what you need to eat to prevent these things from happening. A huge change in diet, will cause huge changes in your body, and you need to figure out what is happening, and make sure you are getting everything taken care of. Over time this will be easier, as the carb allotment rises, and you eat a greater variety of food.
Russell - current BMI 31.4
197 - bmi-30
164 - bmi-25
| current weight: 191.4