About three years ago, a high-pitched “eeeeeeeee” sound started ringing in Linda Gray’s ears. Sometimes, the ring would suddenly turn into a roar, sending Gray into panic mode. Her heart would speed up. She’d try to find a quiet room. “You’re trying to escape it. It’s like, ‘Turn this off!’ ” she says. A lot of people experience ringing, roaring or buzzing, also known as tinnitus. It can be maddening. “It consumed me, it really…