I cannot believe I came across this, I want to cry

. I have had tinnitus since 2019, a steady ringing along with hearing loss. It was not that uncomfortable, and it was manageable. But about a week ago, I woke up with my head feeling like it was underwater. My ear, the one with tinnitus, felt very clogged.
I decided to see an ENT within a week. He prescribed me Prednisone. On the first day, my heart started racing badly, which was a super scary moment. I also had headaches and other symptoms. The next morning I became nauseous and threw up. I thought it was because I had taken the first three pills too close together, since he required me to take three per day for the first five days, and I started in the afternoon. Because of that timing, they ended up being close together. I ignored the symptoms because after that, they did not come back.
But on the third day, I started to notice my tinnitus increasing, spreading not just in my ear but across that side of my head. It is very uncomfortable

, and now I am scared after reading that this can be permanent. Today is day five. He prescribed it for 11 days, but I do not want to take it anymore. If it gets any worse than this, I feel like I am going to lose my mind.