Your questions weren't stupid or insensitive at all.

Having a song stuck in your head sometimes isn't necessarily abnormal. What's considered abnormal is constant music. For me, I have a low volume of constant music. It's like there's a radio on in my head. Sometimes I get to hear songs that I haven't heard in about 20 or 30 years. It can be fun and soothing at times, but when I get stressed it's no longer any fun or soothing. The more stressed I get, the louder the music gets. And at those times the music can be deafening. For me, meds keep the volume low. I'm sure that if I were to increase my dosage the music would probably totally disappear, but I have chosen to stay at my current dosage to avoid negative side affects. Mind you, I still may have a delusion every so often or see and hear little things here and there. The key for me is to keep my level of stress to a minimum.
I'm glad to hear that you'll schedule that appointment in Feb.

In the meantime, perhaps writing down key components will help as a reminder of what you've been experiencing for when you do finally get to see your pdoc.