Esoteric Reference to Worms, Tinnitus, and Kidneys...

I was reading a book today, it says:
Chi Chong or "Crimson Worm"
- This worm drains the kidneys, causes ringing in the ears, pressure in the head, and erratic thought processes.
- This is the worm that lives off of our fears and anxieties.
- Often treated in acupuncture through use of lower lumbar Jia Ji points.

Source: https://books.google.ca/books?id=WOXiDAAAQBAJ&pg=PA34&lpg=PA34&dq=chi+chong+crimson+worm&source=bl&ots=5FkzIaNohI&sig=iTTLtrjmk3E-pDI-wEpUDBZzPZM&hl=en&sa=X&ved=0ahUKEwjq47n9hrbSAhVKxWMKHcWeBXIQ6AEIHDAA#v=onepage&q=chi chong crimson worm&f=false

Pretty weird... it seems that thousands of years ago they already were associating anxiety with tinnitus.