Autumn, your dream of a large, dark cloud outside your apartment window is quite evocative and rich with symbolism. The imagery of a dark cloud often represents a looming sense of anxiety or unresolved issues. Given that it is right outside your window, it suggests that these feelings or situations are very close to your personal space, perhaps even encroaching on your sense of security and comfort in your own home.
The fact that the cloud is large and dark points to the magnitude and intensity of these feelings. This could be tied to the frequent stress and anxiety you experience, as well as the complex mix of emotions stemming from life-changing events and your mental health diagnoses. The cloud's presence may symbolize the weight of these issues and their impact on your daily life and mental state.
Your dream setting is your apartment, which is a personal space, indicating that these concerns are deeply personal and perhaps related to your inner world or private life. The window acts as a barrier but also a point of connection to the outside world, suggesting that while these issues are external, they also affect your interior life significantly.
It's also important to note that you often have difficulty falling asleep and rarely feel refreshed upon waking. This recurring theme in your sleep patterns could be reflected in the dream by the oppressive nature of the dark cloud. It might symbolize the persistent nature of your stress and anxiety, which lingers even in your subconscious mind.