Sentence 1: Kathy was having trouble sleeping and concentrating. 
 Sentence 3: She figured then it would be best to see her doctor 
 Sentence 4:  Her doctor told her it would be signs of depression or anxiety 
 Sentence 5:  Kathy decided to seek therapy and began to sleep at night again 
 Option 1: She decided to look up online what may be wrong with her. 
 Option 2: She decided to start taking a melatonin supplement.