Dealing with Tinnitus: Seeking Advice

I am suffering from tinnitus. It’s been 7 weeks now. I’ve consulted both GP and ENT, and both say that my ears are fine and while the tinnitus might have been caused by a viral infection I had at the time it started, they basically said that my anxiety plays a major factor in it. Now, provided that anxiety may certainly be a contributing factor, what I do not understand is how can anxiety determine feeling of fullness, clicking and tingling inside my ears. Because other than the sound - which varies considerably in frequency and intensity - most of the times I have a feeling of pressure inside both ears, as if there were something trapped and moving inside. Yesterday the ENT has performed a tympanometry test - ironically, as I was being tested the pressure and ringing were very low, almost absent - according to which the pressure is normal in both. So he excludes that it is Eustachian tube dysfunction. However, now both ringing and feeling of pressure are back and really annoying. Further to that, I have noticed that as I lay down in bed either in reading position or supine, the tinnitus changes sound from a close ringing to a distance kettle-like sound, as if this were happening in the next room. This is especially annoying during the night, as I keep waking up at 4/5am and because of this incredibly weird and loud noise (and the subsequent anxiety) I can’t really get back to sleep. I am kind of suspicious that given the changing kind of sound according to the head position, there might be some connection with my neck. Is anyone experiencing the same? Especially the feeling of come-and-go fullness/pressure and changing sound according to the position of the head/neck?