Three weeks later, she stopped eating and sleeping altogether and became delusional.

Alex grows impatient with her and thinks she is becoming delusional.

In Scotland, Jedburgh is also suffering from radiation poisoning, and may be becoming delusional.

At one point, Mr. Martinez became delusional and wanted to kill himself at a subway station, she said.

Her first thought was that he was becoming delusional.

An alternative possibility is that I am becoming delusional.

The novel ends with Ishmael going insane and becoming delusional.

Fear seemed so out of place in the context of a meeting with a professional superior that she wondered if she was becoming delusional.

I just want to make certain none of our engineers have become delusional.

Am I becoming delusional, or did the writing of that novel have a miraculous rejuvenating effect on her chin?