Hi, i'm 27 year old male from texas, and i feel really discomfort in my stomach after eating syrup products, i don't like this why does syrup?

Practically everyone: ...has some food that disagrees with them. Food intolerance is common, variable, & individual. It may even include such innocuous ingestants as water (or, in your case, syrup). Ref: Elaine Shimberg, "Relief From IBS". Assess your threshold--assuming you've experienced no harm from the product, gradually increase exposure to determine the amount of syrup that you can tolerate so not to feel deprived