Answer:
The author wants us to understand the extent of the pain that the speaker feels.
Answer:
If you don't eat properly, you get digestive problems
if you are very stressed, you usually get a headache
if you feel bad, visit your doctor
if you have diabetes, don't eat sugar
if you are overweight, visit a nutritionist
Learn from someone who is fluent in English and the language you speak
Can you give me the author and name of the book ?