A 32-year-old male arrives to the clinic complaining of acute onset testicular p

A 32-year-old male arrives to the clinic complaining of acute onset testicular pain for the past 2 days. 
What questions would you ask this patient to develop a thorough HPI?
How would you conduct your physical assessment?
List and provide rationales for your top three differential diagnoses 
Explain your diagnostic plan 
Choose one of the differentials and explain your initial treatment plan
All questions must be answered with supporting evidence from at least one current clinical practice guideline or evidence based study. 
Expectations
Initial Post:
Length: A minimum of 250 words, not including references
Citations: At least one high-level scholarly reference in APA from within the last 5 years