Friends S1:EP8

1. vague (adj.)

not clearly stated, described, or explained, or not clearly seen or felt:

She had a vague feeling that something had gone terribly wrong.
I have only a vague memory of the house where I lived as a child. 

2. Do you know what it's like to grow up with someone who is critical of every single thing you say?

know what it is (like) to

to be familiar with how it feels to be or do something:

She knows what it's like to go bankrupt - it happened to her 20 years ago.

critical (adj.)

expressing an opinion about something or someone, esp. a negative opinion:

My mother is always so critical of the way I dress!