Signs and symptoms of ehrlichiosis and anaplasmosis are generally the same, although they usually are more severe in ehrlichiosis. Symptoms of ehrlichiosis and anaplasmosis, which vary widely from person to person, include: 
Moderate fever
Chills
Headache
Muscles aches or pains
General feeling of being unwell
Joint pain
Nausea
Vomiting
Diarrhea
Loss of appetite
 Additional signs and symptoms associated with ehrlichiosis but rarely with anaplasmosis include: 
Confusion or changes in mental state
Rash
 Some people may be infected and not develop symptoms.