Trouble is the most dreaded word all of us have time and over been abjected to, well don't believe me then here is what dictionary.com has to say about trouble.

But first of all did you ever know then when you are troubling someone you are doing something out of one of these things.

 

Btw to just stay out of trouble the entire copyright for the text below belongs to dictionary.com .

–verb (used with object)
1.    to disturb the mental calm and contentment of; worry; distress; agitate.
2.    to put to inconvenience, exertion, pains, or the like: May I trouble you to shut the door?
3.    to cause bodily pain, discomfort, or disorder to; afflict: to be troubled by arthritis.
4.    to annoy, vex, or bother: Don't trouble her with petty complaints now.
5.    to disturb, agitate, or stir up so as to make turbid, as water or wine: A heavy gale troubled the ocean waters.
–verb (used without object)
6.    to put oneself to inconvenience, extra effort, or the like.
7.    to be distressed or agitated mentally; worry: She always troubled over her son's solitariness.

Uhm dictionary.com people bad english here according to me it should have been
    – She was always troubled over her son's solitariness.
    Or
    She is always troubled over her son's solitariness.

 

–noun

8.    difficulty, annoyance, or harassment: It would be no trouble at all to advise you.
9.    unfortunate or distressing position, circumstance, or occurrence; misfortune: Financial trouble may threaten security.
10.    civil disorder, disturbance, or conflict: political trouble in the new republic; labor troubles.
11.    a physical disorder, disease, ailment, etc.; ill health: heart trouble; stomach trouble.
12.    mental or emotional disturbance or distress; worry: Trouble and woe were her lot in life.
13.    an instance of this: some secret trouble weighing on his mind; a mother who shares all her children's troubles.
14.    effort, exertion, or pains in doing something; inconvenience endured in accomplishing some action, deed, etc.: The results were worth the trouble it took.
15.    an objectionable feature; problem; drawback: The trouble with your proposal is that it would be too costly to implement.
16.    something or someone that is a cause or source of disturbance, distress, annoyance, etc.
17.    a personal habit or trait that is a disadvantage or a cause of mental distress: His greatest trouble is oversensitivity.
18.    the Troubles,
a.    the violence and civil war in Ireland, 1920–22.
b.    the conflict between Protestants and Catholics in Northern Ireland, beginning in 1969.
—Idiom
19.    in trouble, Informal. pregnant out of wedlock (used as a euphemism).

American Heritage Dictionary

   1. A state of distress, affliction, difficulty, or need: tried to console them in their trouble; got in trouble with the police.
   2. A distressing or difficult circumstance or situation: I've had troubles ever since I took this job.
   3. A cause or source of distress, disturbance, or difficulty: The new recruits were a trouble to him.
   4. Effort, especially when inconvenient or bothersome: went to a lot of trouble to find this book.
   5. A condition of pain, disease, or malfunction: heart trouble; car trouble.
   6.
         1. Public unrest or disorder.
         2. An instance of this; a disturbance.
         3. Troubles Any of various conflicts or rebellions in Ireland or Northern Ireland, especially the period of social unrest in Northern Ireland beginning in 1969.

v. trou·bled, trou·bling, trou·bles
v. tr.

   1. To agitate; stir up.
   2. To afflict with pain or discomfort.
   3. To cause emotional strain or anxiety to; worry or distress.
   4. To inconvenience; bother: May I trouble you for directions?

Source: dictionary.com