Sentence 1: Dan noticed that the arches of his feet were killing him. 
 Sentence 3: Dan's doctor recommended he get some new shoes 
 Sentence 4:  Dan went that night and bought a new pair of really nice shoes 
 Sentence 5:  Dan's feet have felt great ever since! 
 Option 1: He asked his doctor about this pain. 
 Option 2: It turns out he had plantar fasciitis and needed a shoe orthotic.