During naps i wake up choking on my spit. when i sleep at night i won't choke, but wake up with a sore throat. is this something to be concerned about?

Multiple reasons: There are many possibilities but one common cause of your symptoms is a condition called "post nasal drip". Basically secretions from your nasal cavity run down your throat while sleeping. Sometimes, anti-histamine medications can help. Other conditions such as gastroeshophageal reflux and ashtma can also present like this. Speak with your doctor for a proper history.

Reflux: It could be a sign of gerd or reflux disease you might consider an evaluation by a gastroenterologist.