“Big Issue” Thoughts The next type of intrusive thought falls in the category of big issues and involves continual episodes of trying to answer questions about these issues that are essentially unanswerable. The most common ones involve the questions of uncertainty and lack of guarantees in life, the nature of reality, the purpose of life, and how can you know if you really, really believe or feel something. These questions seem really important and almost always involve questions with many dimensions and no definite answers.
