Signs and symptoms of autonomic neuropathy depend on which nerves are damaged. They might include:  Dizziness and fainting when standing, caused by a sudden drop in blood pressure. Urinary problems, such as difficulty starting urination, loss of bladder control, difficulty sensing a full bladder and inability to completely empty the bladder. Not being able to completely empty the bladder can lead to urinary tract infections. Sexual difficulties, including problems achieving or maintaining an erection (erectile dysfunction) or ejaculation problems. In women, problems include vaginal dryness, low libido and difficulty reaching orgasm. Difficulty digesting food, such as feeling full after a few bites of food, loss of appetite, diarrhea, constipation, abdominal bloating, nausea, vomiting, difficulty swallowing and heartburn. These problems are all due to changes in digestive function. Inability to recognize low blood sugar (hypoglycemia), because the warning signals, such as getting shaky, aren't there. Sweating problems, such as sweating too much or too little. These problems affect the ability to regulate body temperature. Sluggish pupil reaction, making it difficult to adjust from light to dark and seeing well when driving at night. Exercise intolerance, which can occur if your heart rate stays the same instead of adjusting to your activity level. 
signs symptoms autonomic neuropathy depend nerves damaged  include:  dizziness fainting standing  caused sudden drop blood pressure  urinary problems  difficulty starting urination  loss bladder control  difficulty sensing full bladder inability completely empty bladder  being able completely empty bladder can lead urinary tract infections  sexual difficulties  including problems achieving maintaining erection (erectile dysfunction) ejaculation problems  women  problems include vaginal dryness  low libido difficulty reaching orgasm  difficulty digesting food  feeling full bites food  loss appetite  diarrhea  constipation  abdominal bloating  nausea  vomiting  difficulty swallowing heartburn  problems due changes digestive function  inability recognize low blood sugar (hypoglycemia)  warning signals  shaky  aren't there  sweating problems  sweating little  problems affect ability regulate body temperature  sluggish pupil reaction  making difficult adjust light dark seeing well driving night  exercise intolerance  can occur heart rate stays adjusting activity level
autonomic neuropathy