I understand your anxiety over this, esp as you haven't seen Matia yet, but like I just wrote another poster, take heart that all these crazy die-off things are natural and will pass.  And ringing ears are very common. 
Yes, some people can already experience major die-off when only on the diet. As for periods, some people (incl. me) even lost their period or had uneven ones for a while ... at first it led me to point blame at the treatment b/c it started then, but I've come to realize how much hormones play a part and sometimes your cycle goes on "hiatus" while the hormones get balanced.  They're also super sensitive to stress, esp the kind we're under with this. But the end result is you should have a perfect period!  no pain, no major PMS, no heaviness - like it should be.
Hang in there!!!!
 

Hi Christine,
Before i started seeing Matia, i realized i had developed occasional ringing and ear pain, but it disappeared as mysteriously as it came. I felt it a few days ago again but only lasted for a couple of minutes. I seem to get worse with hormonal changes also. Usually mid-period and right before. Then a few days of stability and starts again. Stress seems to worsen my symptoms. I would just meditate on good thoughts, some relaxing music. Matia is wonderful. She not only heals your body but your mind. I feel blessed to live close enough that i can actually go to her appointments. That gives me a few weeks of inspiration and feeling of being in really good hands before the our next meeting.