Default [Q] Sudden network loss

Today I noticed my texts wouldn't send. I restarted the phone and suddenly, no service. I tried updating the baseband, reinstalling my rom/kernel, wiping the cache, all to no avail. I also noticed that now I have a huge list of Sprint APNs in my phone... not sure what to do with those, but they weren't there before. I want to avoid my appointment with sprint tomorrow because I have a feeling they'll want me to get a refurbished phone... How can I fix this myself?