I developed a fever, dizziness, nausea, aches and pains several days ago. Since it got worse, after a day, I went to an urgent care and they diagnosed me with the flu and gave me tamiflu and an anti nausea med. Now, two days later, I still have nausea and have rashes in several parts of my body including my neck, inside my arms and on my chest. I am wondering if I was misdiagnosed. Is that possible?