First, recognizing that you are struggling and taking the step to seek medical help is an important, proactive decision: what you are going through is a treatable condition, and you do not have to continue battling this mental and physical exhaustion alone.
The symptoms you describe—uncontrollable intrusive thoughts replaying past negative events whenever you are awake, profound mental and physical exhaustion, worsening overthinking, insomnia, and an inability to concentrate or study over the past few years—strongly align with Generalized Anxiety Disorder (GAD) with Depressive Features / Rumination Syndrome.
When the brain's default mode network (DMN) becomes hyperactive from chronic emotional strain, it locks the mind into continuous "rumination loops" (involuntary replaying of past regrets, negative events, or worries). This keeps your nervous system in a persistent state of fight-or-flight, draining your physical energy, impairing your prefrontal cortex (which controls focus and studying), and making sleep your only escape. With targeted psychiatric care and cognitive therapy, these rumination loops can be effectively calmed.
Next Steps
Consult a Psychiatrist (Online or In-Person): Schedule a clinical consultation with a psychiatrist to conduct a full assessment and discuss evidence-based medical treatment.
Initiate Cognitive Behavioral Therapy (CBT) / Mindfulness-Based Therapy: Work with a licensed Clinical Psychologist to learn structured techniques for rumination:
Cognitive Defusion & Reframing: Learning how to observe intrusive thoughts without getting trapped in endless internal arguments with them.
Attention Retraining: Exercises to redirect mental focus outward to current tasks rather than inward to past negative memories.
Rule Out Physical & Nutritional Deficiencies: Have a doctor order basic laboratory tests, including Serum
Vitamin B12, Vitamin D3,
Complete Blood Count (CBC), and
Thyroid Profile (
TSH), as common deficiencies frequently exacerbate brain fog, fatigue, and poor concentration.
Health Tips
Avoid trying to forcefully "suppress" or fight intrusive thoughts with willpower alone. Trying to force thoughts out of your head often produces a rebound effect, making them feel louder and more persistent. Learning therapeutic strategies like CBT allows you to let them pass without emotional reactivity.
Implement a "Worry Window" Technique: Set aside 15 minutes in the late afternoon (e.g., 5:00 PM to 5:15 PM) to write down your worries on paper. If intrusive thoughts arise during study or sleep time, tell yourself: "I will process this during my designated worry window tomorrow."
Anchor Yourself in Physical Activity: Engage in 20–30 minutes of moderate aerobic exercise (brisk walking, jogging, cycling) or progressive muscle relaxation daily. Physical exertion helps burn off excess adrenaline and encourages natural restorative sleep.