Multi-Symptom Decision Tree

Brain Fog + Mood Changes

Symptoms: Brain fog · Difficulty concentrating · Anxiety · Irritability. Likely cause: Perimenopause or thyroid mimic.

Likely cause

Perimenopause or thyroid mimic

See condition page →

First steps

  1. TSH + free T4 lab work (rule out thyroid first)
  2. Symptom diary 4 weeks
  3. CBC + ferritin (anemia)
  4. Perimenopause stage assessor

Treatment options

  • HRT trial if VMS present
  • CBT-meno or therapy
  • SSRI low-dose
  • Sleep hygiene + lifestyle

When to see doctor

Persistent ≥6 weeks. Earlier if interfering with work or relationships.

Browse providers for Perimenopause or thyroid mimicTake the matcher

Other symptom combinations

Hot Flashes + Sleep DisruptionWeight Gain + FatigueIrregular Periods + AcneLow Libido + Vaginal DrynessJoint Pain + Muscle LossHair Loss + FatigueHeavy Bleeding + AnemiaDepression + Anxiety

Informational only — a symptom pattern is not a diagnosis. Only a clinician can diagnose the cause of your symptoms.