Whenever I eat potato chips, I get heartburn or something. Why chips have that effect on me?

Not knowing what kind of chips you are eating, I would suggest reading the label….if they are flavored in any way (i.e. sour cream, bbq, nacho, etc.) they usually have MSG which can cause a multitude of reactions, with me it is “shock” like symptoms but it could cause heartburn, headaches, indigestions, etc. (Sun Chips don’t have MSG by the way, even in the flavored ones). If you are only eating plain potato chips I would then suggest it is the fat content might be your source of heart burn, especially if you can eat potatoes in other forms.