get immediate help if you develop unusual or severe stomach pain, especially with bloody or black stools. the most common side effect is diarrhea, sometimes severe. if it's severe, stop taking linzess and call your doctor right away. other side effects include gas, stomach area pain, and swelling. i'm still doing it all. the water. the exercise. the fiber. and i said yesss to linzess for help with belly pain and recurring constipation. ask your doctor. webut some of us turn outhose dreams...... into action... the bookers. the doers. the 'hit that confirmation button and let's go!'- ers! because bookers know that the perfect place to stay... is right there for the booking. be a booker at booking.com the world's #1 choice for booking accommodations.