Can allergies cause stomach aches?

What is the cause of my terrible stomach aches?

• For about two to three months I've been getting terrible stomach aches ever single day. I get them in the second half of the day. They last from 5 minutes to two hours. They're terrible! No vomiting or diarhea but sometimes I go number two up to four times a day. It started when I decided to eat healthy. I used to eat a whole lot of sugar and crap and now I eat ftuits, veggies, soy milk, things like that. I've noticed that my stomach aches get worse or are triggered by drinking water. Sometimes they are just the beginning of a stomach ache yet sometimes I have to miss school because I was up all night not able to move from the pain in my stomache. I'm sick of this and it isn't doing any good just letting it go on and not finding the source. I am a little lactose intolerant so that's why I dirnk soy milk and don't have heavy dairy products. I also started eating less fiber. Not sure what else to do! One more thing: I get about four hours of sleep a night, not sure if that affects anything but it might. What could possibly be wrong? What could trigger it? What can I do??

• Answer:

  Maybe acid reflux??? sounds like my symptoms... just avoid eating before bed, acidic foods, stress can make it worse, just eat a lot of crackers and bread to soak up the acid