"When I was younger, I was told that there is too much inside..." — Lora Mathis quote meaning

When I was younger, I was told that there is too much inside me. That I have feelings where others have bone. At the age of seven, a doctor tapped inside my head and asked, "Do you choke on memories from time to time? Do you cry for no good reason at all? Do words take a hammer to your head and crack your skull?" Yes, yes, yes, I nodded. "Then you've definitely got them," he said, as he checked off a box on his list. "Too many feelings. What a shame. Try not to keep them inside or you'll drown.