Should I still go to the doctor even though I am better?

I have had many symptoms that have cleared. These included coughing dry and wet, Nausea due to coughing a lot, Vomiting after coughing a lot, cough worsens at night, cold air makes cough worse, short of breathe when climbing school stairs and running short distance, coughing up clumps/strings of phlegm, fatigue even though I got plenty of sleep, felt feverish for one day, small sneezes, high pitch coughing, coughing up alot of mucus, runny nose, bad odor in nose, loss of appetite, weight loss 135 to 127(8), hoarse voice. But I feel better already and I am scheduled for a Doctor's appointment tomorrow. The only thing is milk products make it worse. This happened over the course of one month.