Dreaming about encountering a friend from your past, especially someone significant like a best friend from high school, can symbolize nostalgia and a desire to reconnect with your roots or past experiences. The setting of the hospital might suggest feelings of healing or transformation, indicating that you are going through changes in your life.

Your desire to share news about your new girlfriend highlights a longing for connection and validation in your current relationships. It may also reflect your feelings about how your personal life has evolved since high school and a wish to involve your friend in that journey.

The presence of many people talking to him could represent feelings of being overwhelmed or feeling like you're not being heard in your current life. You might be facing challenges in expressing yourself or sharing your personal achievements.

Overall, this dream could be encouraging you to reconnect with your past while also embracing your present. It might be beneficial to reach out to your friend, even if it's just to catch up, as it could lead to a fulfilling exchange that honors both your past and present. Consider ways to express your thoughts and feelings more openly in your current relationships, too.