Dana Marie, the imagery in your dream is striking and deeply evocative, reflecting a complex interplay of emotions and experiences. Your grandmother's presence in your dream, especially in such a distressed state, signifies a profound connection to your past and possibly unresolved feelings related to her passing. The act of her vomiting embalming fluid in your aunt and uncle's bathroom is particularly symbolic. Embalming fluid is used to preserve the dead, suggesting that you might be grappling with issues of preservation and decay, both emotionally and mentally. The decrepit state of your grandmother in the dream could be reflective of how you perceive the impact of past traumas and losses on your current mental state.
Bathrooms in dreams often represent a place of cleansing and release. The fact that this scene takes place in your aunt and uncle’s bathroom could indicate that you are seeking a form of emotional release or purification in a familial context. There might be unresolved issues within the family dynamics or perhaps guilt and grief associated with your grandmother’s death that you feel need to be purged or addressed.
Given the imagery of embalming fluid, this could also be a metaphor for feeling stuck or preserved in a state of emotional stagnation. The decrepit appearance of your grandmother might mirror feelings of decay or deterioration in your own emotional or mental health, possibly related to the stress, anxiety, and PTSD you have experienced.