Am i a wasteful person?

i will get a bag of dorritos and i will eat some of them but if i forget about them after about 3 weeks later or something i will throw the whole bag away and complain about it tasting ( old and stale ish) WHICH THEY DO GET OLD AND TASTE WERID! i have OCD but i dont know if it has anything to do with it. am i wasteful? or is it normal to think food is nasty after leaving it for 3 weeks with the bag shut.