Dreams about infestations can often symbolize feelings of being overwhelmed or invaded by issues in your waking life. The variety of animals you encountered—rattlesnakes, Komodo dragons, iguanas, cockroaches, and a strange parasite—may represent different aspects of stress or anxiety.

• Rattlesnake: This can symbolize hidden fears or threats, particularly since it's spewing something, which might indicate that these fears are manifesting in an uncontrollable way.
• Komodo Dragons and Iguanas: These reptiles could represent feelings of danger or being threatened, as they are often associated with primal instincts and survival.
• Cockroaches: Often associated with filth or decay, they might symbolize something in your life that you find repulsive or that you want to get rid of.
• Parasite: This could represent something that is draining your energy or resources, perhaps a toxic relationship or situation that feels inescapable.

The blurriness of your vision, despite wearing glasses, suggests that you may be struggling to see things clearly in your life or that you're feeling confused about a situation. This could indicate a need to reassess your perspectives or to confront issues that have been clouded or ignored.

Overall, this dream may be urging you to address the feelings of overwhelm and confusion in your life. Consider what areas may be contributing to your stress and seek to clarify and confront these issues. Taking proactive steps could help you regain control and clarity.