Please help i have bronchitis please answer?

So my grandpa has walking pneumonia.And I thought I had it.So I started off with a dry cough then it turned to a croopy cough then I got a sore throat.Then i got dizzy then i got a headache then my chest was sore.Then I got wheezing in my chest.So now I'm lethargic.And when I swallow it makes me feel like I'm going to throw up.So what do I do?