Dreams involving themes of mental health struggles, such as schizophrenia, and feelings of being controlled or influenced by external forces can be quite distressing. Your nightmare may reflect underlying feelings of anxiety or fear about losing control over your thoughts or emotions. The parasite in your head could symbolize something that you feel is negatively affecting your mental state or well-being, perhaps a situation or relationship that feels invasive or detrimental.
The idea of being drugged 24/7 might indicate feelings of helplessness or being trapped in a situation where you feel you lack autonomy. This could relate to real-life stressors, whether they are personal, professional, or social.
To gain further clarity, consider reflecting on any current stresses or changes in your life that may be contributing to these feelings. It might also be helpful to engage in self-care practices or speak with someone you trust about your experiences and feelings. Emphasizing your mental well-being and seeking support can be beneficial in processing these emotions.