Your dream dwelling represents your mind. The condition of the apartment indicates the condition of your mind. In this case, you have a well kept state of mind with valuable items throughout. In the case of the mind, these valuable items could be knowledge, experience, wisdom, memories, faith, etc. A doctor, symbolizes God, the healer. He makes a house call and you are glad that it is as it is. Since the dream doctor is someone you actually know, look at their personality. The way you see them will give you a better picture of the purpose of His visit. The confusion about how and why you have that apartment shows how you don't truly identify with how beautiful your mind really is. Considering your statement about your chronic illness, it's important to hold on to a positive outlook. I hope this makes some sense for you and helps in some way. God bless.