Have this checked out by your doctor because you may have a growth, abcess, cyst or lesion. Sometimes such growths disappear on their own, other times they have to be monitored and ultimately removed.
Before seeing your doctor, do some homework including a checklist of your recent health: any colds, flus, dental work and/or respiratory infections? Same if you've gained weight recently, or are/have been overweight for some time - these can account for your increase in snoring.
Here's an article on neck and throat lumps: http://www.nlm.nih.gov/medlineplus/e...cle/003098.htm