What Causes Stomachache Along With Dizziness And Chest Pain?

Hi, i had been up a moving for around 20 minutes this morning before getting sudden shooting stomach pains, i thought i needed the toilet, and went all dizzy when on the toilet, i went to lay down in bed for a few mins and started to drip sweat around my neck and chest the pain lasted for about 20-30 mins, has been ok the rest of the day however my stomach feels achy when i put pressure on it, for example sitting down and getting up, walking (sometimes) and when passing urine.... any ideas?