How can I post my question in the correct category and find they are in another when I check for answers?

Someone Moved your Question to a Different Category that is why your seeing it

If it was Originally in there tho and you just changed it and its still in the Old Category It could be a Glitch

Any Level 7 user can Edit the category for any question. The feature was added to give high level users the ability to help ensure questions were categorized properly, but it's badly abused. All you can do is return your question to the appropriate category. There is no way to report abuse of the question-moving feature, but typically users who move questions will eventually leave yours alone (the downside is often by that time you aren't likely to get many, if any, additional responses if you put it back where it belongs).

Level 7 members can change categories for all members. Some just change them to meaningless categories for fun. Just change it back.