my first suggestion would be not to spin around! lol! second would be that maybe you have the start of a sinus infection. make an appt. with your dr and let them have a look. a sinus infection can cause a lot of pressure in your nasal passages/head. most likely is nothing, but better safe than sorry! let us know what you find!
elizabeth
forgot to add that i also get tight/pressure in my head when i spin..