Should I go to the doctor?

[Alexis]

I have several small things that have bothered me for as long as I can remember that I never talked to my doctor about. I get sores in my mouth every so often and they are really painful, I have knee pain, and I have really cold and discolored hands and feet. I don't really like going to my doctor unless its really dire and I feel like my doctor has better and more important things to deal with than joint pain, cold hands, and mouth sores so I feel like I shouldn't waste his time. Plus those are all so random and unrelated, its not like I'm sick with one thing. Should I make an appt and just say that these things have all been bothering me a while and I thought I should just come in to be safe or am I right, are these things unimportant? Or should I just go in for one or two of these things? I'm 19, I'm not anemic (have been tested), and I have depression (the last time I went to my doctor was for this, so I'm hesistent on going back because he will ask about this). Should I go or not?