Hi Cassandra, and thank you for writing. The main consideration when refinancing is the appraised value, regardless of the number of rooms for which you get credit. If your attic was not considered a bedroom when you purchased the property, and you were still able to finance it, the value must have been okay. If the home's current state creates health or safety problems, it could prevent a refinance. If the changes you implemented caused its value to fall, you may also have problems refinancing. As long as these things have not occurred, you should be okay. There are standard guidelines for bedrooms, and I believe that doors and closets are among these things. I would check an online home valuation source like Realtor.com or even your own county assessor's web site, and see if local values have increased. That should give you an idea of the what is happening to your own property value.
You can also ask a lender for rate quotes and what value you need to get complete your refinance. Good luck, and please write back if I have not completely answered your question.