Do I need to get my wisdom tooth removed?

Hello, I have a question in regards to my upper left wisdom tooth. So I have this wisdom teeth that has erupted since 3 years ago that I thought has finish growing. But two days ago, I woke up with a sore throat out of nowhere and the gum near the wisdom tooth was hurting. The wisdom tooth has never touched or bothered my cheeks before too until that morning and now I have to puff my mouth just so it doesn't touch. Then yesterday, the gum where my wisdom tooth was sore to the touch and when I opened my mouth it would hurt. My question is, am I in need of getting this wisdom tooth remove? Should I go see a dentist about this? My thing is, all four of my wisdom teeth have erupted already. And usually when they start growing again, I usually endure the pain because it will stop in a few days. But I've never had a wisdom tooth touching my cheeks before or causing my jaw to be sore. And, if I do go see a dentist, I don't know where to start and look for a dentist, what to expect, or the process in going to see one by myself because I'm away for college right now. Also, the last time I saw one was in middle school.