Fill in: nerves, back, eye, shoulder, neck, head. Are their any similar idioms in the Russian language?

1 They never agree with each other. They don't see eye to ... .

2 What's wrong with Sam? He's like a bear with a sore ... .

3 They gave me the cold ... when I entered the room.

4 He drives me crazy. He's a pain in the ... .

5 Get off my ... .I'm in a bad mood today.

6 I'm fed up with him. He really gets on my ... .