From what you've described, Your brain has become overly sensitive after repeatedly encountering the geckos. Initially, your brain saw them as a threat. After several encounters, it started staying on high alert all the time. Now, even when there isn't a gecko present, your brain keeps expecting one. That's why you feel anxious before stepping outside, using the bathroom, or switching off the lights. The fear is no longer just about the gecko—it's about the possibility of encountering one. When you avoid these situations, your anxiety decreases temporarily, so your brain learns that avoidance keeps you safe. Unfortunately, this strengthens the fear, making it worse over time. This creates a cycle: fear → avoidance → temporary relief → even stronger fear. The good news is that this is a recognised anxiety disorder called a specific phobia, and it is highly treatable. We can gradually retrain your brain through therapy to realise that these situations are safe. Over time, your anxiety will reduce, and you'll regain your confidence.

This level of phobia — affecting daily life, studies, and sleep — needs professional help. It's called specific phobia and responds very well to Cognitive Behavioral Therapy (CBT) with gradual exposure. Avoiding the trigger makes the phobia worse over time, not better. A psychiatrist can also prescribe short-term medication to help manage anxiety while you start therapy.

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What you are describing—a rapid onset of overwhelming fear toward house geckos over the last two months, progressing to severe disruption of daily activities, studying, sleeping in the dark, and hyper-vigilance—is a classic presentation of a Specific Phobia (Herpetophobia / Saurophobia) with secondary acute anxiety. When you encountered a cluster of geckos in your living space in June, your brain's amygdala (the fear center) linked the presence of geckos with an intense threat response. This created a heightened state of hyper-vigilance, where your nervous system constantly scans the environment for potential threats, making it impossible to relax or sleep in the dark. The fear is not about physical danger from the gecko itself, but rather an involuntary physical and psychological panic reaction to the anticipation or thought of an encounter. Specific phobias that acutely impair functioning are extremely common and highly treatable.

Consult a psychotherapist

Consult immediately mam