I can offer some possible explanations for feeling this way:
Social Anxiety: If you experience social anxiety, interacting with others can be mentally and emotionally draining. The fear of judgment or criticism during social interactions can lead to feelings of sadness or depression afterward.
Overstimulation: For some individuals, being in social situations can lead to sensory overload. Large crowds, excessive noise, or constant social interactions can overwhelm the nervous system and trigger feelings of exhaustion and depression.
Emotional Exhaustion: Engaging in social interactions can be emotionally demanding, especially for introverted individuals. Constantly trying to match social expectations or handle complex social dynamics can leave you feeling emotionally drained and depressed.
Comparison and Self-Esteem: Social situations may trigger feelings of inadequacy or comparison with others, leading to a decline in self-esteem and feelings of sadness or depression.
Loneliness: Paradoxically, socializing can sometimes accentuate feelings of loneliness, especially if you feel disconnected or misunderstood during the interactions.
Unresolved Issues: Being in social situations might bring up unresolved personal issues or past traumas that can contribute to feelings of depression.
Lack of Fulfillment: Social interactions might not be meeting your emotional needs, leaving you with a sense of emptiness or dissatisfaction.
If you find that these feelings persist or significantly impact your well-being, it's essential to seek support from a mental health professional. They can help you explore the underlying causes, develop coping strategies, and provide guidance on managing your emotional responses to social situations. Remember, seeking help is a sign of strength, and you don't have to face these challenges alone.