someone who suffers from repetitive, intrusive, thoughts and/or
uncontrollable urges to perform certain repetative behaviors would
most likely be diagnosed with?

Hi lazystretch818-ga,

That sounds like obsessive-compulsive disorder, also known as OCD. 
The thoughts are the obsessions and the urges are the compulsions.

For more information, see, for example:

http://www.aafp.org/afp/980401ap/eddy.html

http://www.psychologyinfo.com/problems/ocd.html

http://www.emedicine.com/med/byname/obsessive-compulsive-disorder.htm

http://sulcus.berkeley.edu/mcb/165_001/papers/manuscripts/_22.html

--efn