What Causes Ear Tinnitus And Head Pressure?

Hello. I am 19, 5 2 , 109lbs, and I can t think of any relevant medical history. I ve been having problems with my ears. Mostly I ve been having problems talking on my cellphone. Whenever I talk on my cellphone my eardrum seems to pulse with every word that the other person says. I use my phone with my right ear. When I put it up to my left ear, I didn t experience a problem. I also experience this problem when having a conversation in which the other person is talking really loudly. Recently I ve been feeling a lot of pressure in my head as well. I ve always seemed to have sinus problems, and I usually wake up with some type of mucus in my throat or nose 2/3 of the year even when I m not sick. I also have to ride an elevator every day 32 flights in which my ears pop. Thank you.