Tinnitus after injection?

Hi guys - weird question, but couldn't think where else to ask it. I do plan to call my doctor tomorrow.

I got my first Xolair injection on Thursday. Sunday, early morning I woke up with ringing in my ears (high pitch constant sound). I chalked it up to sleeping funny or something else, but it's continued all day and so I decided to look and see if this can be a symptom of Xolair since that's really all that has changed.

I saw it can be a rare complication with hearing loss and now I'm a bit freaked out. Has anyone else experienced this?