"..... and don't stuff up your head with things you don't understand." What does the doctor mean by this remark?

Question

first chapter page 6

Asked by Samrat D #530779 on 6/10/2016 5:02 AM

Last updated by jill d #170087 on 6/10/2016 11:43 AM

Answered by jill d #170087 on 6/10/2016 11:43 AM

In context, the doctor is saying don't fill your head with worries (illnesses) that you're not qualified to diagnose.