Is this normal for sinsusitis?

Hello, lately I have been feeling extremely horrible (dizziness, upset stomach, vomiting.... but not a whole lot, tired, weird feelings around eyes, cheek pressure) and I have gone to a doctor and they diagnosed my with an Upper Respiratory infection and Sinusitis. I have all of the symptoms of sinusitis, but I have tinnitus (ringing in ears) temporarily and a problem with balancing after getting of the elevator. Is that normal for sinusitis? I have had sinusitis before but never as bad as this. Can anyone please help?