Although This Hasn't Been Confirmed, There's a Possibility I'm Still Contagious

It's Day 9 of my "cold," and I just had to Google whether or not this is normal.  I mean, it's been over a year since I was sick.

Now that I'm in medical school, I usually don't get sick.  Instead, I just get these weird pseudo-illnesses.  I'll have a low grade fever, unaccompanied by any other symptoms, which will resolve itself after three days.  Or, I'll have a scratchy sore throat for two days that never fully develops into a cold or infection.  My doctor told me sometime this summer that it was due to my constant exposure to pathogens at the hospital and medical school.  The low level infections are a sign that I am getting sick.  My body is just becoming a beast at fighting back, so I never feel the full course.

So, what gives now?  Why are you disappointing me, immune system?  It is because I'm old and decrepit?

Anyway, I can't remember if I'm supposed to be concerned and see a doctor at this point.  I think I will try tomorrow, though.  My poor nose is raw from blowing and baby, it's cold outside.  I need that nose skin for protection!