Yes, it is possible to experience happiness and anxiety simultaneously. Emotions are complex and can coexist, even if they seem contradictory at first glance. The human mind is capable of holding multiple emotions at once, and it's not uncommon for individuals to feel a mixture of positive and negative emotions in various situations.
For example, someone might feel happy about an upcoming event or achievement, such as a birthday celebration or a promotion at work, but also experience anxiety or nervousness about the responsibilities that come with it or the potential for things to go wrong.
Similarly, a person might feel happy in the presence of loved ones or during a joyful occasion, yet still experience anxiety due to social pressures or worries about the future.
The coexistence of happiness and anxiety is a natural part of being human, and it doesn't necessarily indicate any kind of psychological issue. It's essential to recognize and accept these emotions as they arise and, if needed, find healthy ways to cope with anxiety or seek support when necessary.