Answer:
The answer would be Amnesia
Explanation:
Amnesia refers to the loss of memories, such as facts, information and experiences. Though forgetting your identity is a common plot device in movies and television, that's not generally the case in real-life amnesia. Instead, people with amnesia — also called amnestic syndrome — usually know who they are.
A teen health and social life will be affected if tested positive for HIV by having less friends, taking more precautions, and having less communication with others because no one would want to get near an HIV teen
It would be best to take it to a vet and ask if he has anything on him, or if he is going through some sort of emotional state