Well, of course not. Pink eyes can not lead to stomach pain. First, you should know what the pink eyes are. Pink eyes are an infection of the eye or eyes, caused by Staphylococcus or Streptococcus bacteria. Also, it can be very dangerous for it is very contagious, when you get them, it will start with the redness, itching, irritation, and a characteristic creamy discharge in your eyes. But on the other hand, there is nothing to do with stomach. So it can not cause stomach pain. By the way, you should know that contacts, eyeliners can lead to pink eyes, too. By using eyeliners, they can carry many bacteria, so that it can lead to infection to your eyes, even the pink eyes.