The Doctor's hand shot out, catching her wrist in a grip that was hard enough to bruise.

"NO," he snapped, "No, Reinette, you can't help, it hurts too much!"

With no other options, he tried as she suggested. Worked on building a wall around his memories of the TARDIS, of being connected, but every time he brushed the memories, the wall crumbled and the pain began again.

"I can't focus, I need something---a-a-a-a sedative, anything, just something to stop it for just a few moments!"