We do not use the present progressive to talk about 'general time'. For this, we use the simple present. Compare:

• My sister's living at home for the moment, (around now) You live in North London, don't you? (general time)
  
• Why is that girl standing on the table? Chetford Castle stands on a hill outside the town.
  
• The leaves are going brown.
  
• I go to the mountains about twice a year.
  

We often use the present progressive to talk about the future.

• What are you doing tomorrow evening?

Some verbs are not used in progressive forms.

• I like this wine. (NOT I'm liking . . .)

Verbs that refer to physical feelings (for example feel, hurt, ache) can be used in the simple present or present progressive without much difference of meaning.

• How do you feel? OR How are you feeling?

• My head aches OR My head is aching