diff --git a/nano-diagnostics.sh b/nano-diagnostics.sh
new file mode 100755
index 0000000..59178f6
--- /dev/null
+++ b/nano-diagnostics.sh
@@ -0,0 +1,121 @@
+#!/bin/bash
+
+# Linux Fan Diagnostic Script
+# Monitors CPU usage, temperature, and processes every 200ms
+# Usage: ./fan_diagnostic.sh [duration_in_seconds]
+
+# Default duration: 60 seconds (can be overridden by argument)
+DURATION=${1:-60}
+INTERVAL_MS=200  # milliseconds
+LOG_FILE="fan_diagnostic_$(date +%Y%m%d_%H%M%S).log"
+
+echo "==================================" | tee -a "$LOG_FILE"
+echo "Linux Fan Diagnostic Script" | tee -a "$LOG_FILE"
+echo "Started: $(date)" | tee -a "$LOG_FILE"
+echo "Duration: ${DURATION}s | Interval: ${INTERVAL_MS}ms" | tee -a "$LOG_FILE"
+echo "Log file: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "==================================" | tee -a "$LOG_FILE"
+echo "" | tee -a "$LOG_FILE"
+
+# System Information
+echo "=== SYSTEM INFORMATION ===" >> "$LOG_FILE"
+echo "Hostname: $(hostname)" >> "$LOG_FILE"
+echo "Kernel: $(uname -r)" >> "$LOG_FILE"
+echo "CPU Model: $(lscpu | grep 'Model name' | cut -d':' -f2 | xargs)" >> "$LOG_FILE"
+echo "CPU Cores: $(nproc)" >> "$LOG_FILE"
+echo "" >> "$LOG_FILE"
+
+# Installed packages that might affect CPU/Fan
+echo "=== INSTALLED SOFTWARE ===" >> "$LOG_FILE"
+if command -v docker &> /dev/null; then
+    echo "Docker version: $(docker --version)" >> "$LOG_FILE"
+    echo "Docker containers:" >> "$LOG_FILE"
+    docker ps -a >> "$LOG_FILE" 2>&1
+    echo "" >> "$LOG_FILE"
+fi
+
+if command -v snap &> /dev/null; then
+    echo "Snap packages:" >> "$LOG_FILE"
+    snap list >> "$LOG_FILE" 2>&1
+    echo "" >> "$LOG_FILE"
+fi
+
+echo "Recently installed packages (apt):" >> "$LOG_FILE"
+if [ -f /var/log/apt/history.log ]; then
+    grep -A 2 "Install:" /var/log/apt/history.log | tail -20 >> "$LOG_FILE"
+fi
+echo "" >> "$LOG_FILE"
+
+# Temperature sensors available
+echo "=== TEMPERATURE SENSORS ===" >> "$LOG_FILE"
+if command -v sensors &> /dev/null; then
+    sensors >> "$LOG_FILE" 2>&1
+else
+    echo "lm-sensors not installed. Install with: sudo apt install lm-sensors" >> "$LOG_FILE"
+fi
+echo "" >> "$LOG_FILE"
+
+# Monitoring loop
+echo "=== MONITORING DATA ===" >> "$LOG_FILE"
+echo "Starting monitoring for ${DURATION} seconds..." | tee -a "$LOG_FILE"
+
+START_TIME=$(date +%s)
+END_TIME=$((START_TIME + DURATION))
+SAMPLE=0
+
+while [ $(date +%s) -lt $END_TIME ]; do
+    SAMPLE=$((SAMPLE + 1))
+    TIMESTAMP=$(date +"%Y-%m-%d %H:%M:%S.%3N")
+    
+    echo "--- Sample #${SAMPLE} at ${TIMESTAMP} ---" >> "$LOG_FILE"
+    
+    # CPU Temperature
+    if [ -f /sys/class/thermal/thermal_zone0/temp ]; then
+        TEMP=$(cat /sys/class/thermal/thermal_zone0/temp)
+        TEMP_C=$((TEMP / 1000))
+        echo "CPU Temp: ${TEMP_C}°C" >> "$LOG_FILE"
+    fi
+    
+    # Overall CPU usage
+    CPU_USAGE=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')
+    echo "CPU Usage: ${CPU_USAGE}%" >> "$LOG_FILE"
+    
+    # Top 5 CPU consuming processes
+    echo "Top CPU processes:" >> "$LOG_FILE"
+    ps aux --sort=-%cpu | head -6 | tail -5 >> "$LOG_FILE"
+    
+    # Docker containers CPU usage (if docker is running)
+    if command -v docker &> /dev/null && docker ps -q &> /dev/null; then
+        echo "Docker container stats:" >> "$LOG_FILE"
+        docker stats --no-stream --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}" >> "$LOG_FILE" 2>&1
+    fi
+    
+    # Fan speed (if available)
+    if command -v sensors &> /dev/null; then
+        FAN_SPEED=$(sensors | grep -i "fan" | head -1)
+        if [ ! -z "$FAN_SPEED" ]; then
+            echo "Fan: $FAN_SPEED" >> "$LOG_FILE"
+        fi
+    fi
+    
+    echo "" >> "$LOG_FILE"
+    
+    # Progress indicator
+    CURRENT_TIME=$(date +%s)
+    ELAPSED=$((CURRENT_TIME - START_TIME))
+    PROGRESS=$((ELAPSED * 100 / DURATION))
+    printf "\rProgress: %d%% (Sample #%d, %ds/%ds)    " "$PROGRESS" "$SAMPLE" "$ELAPSED" "$DURATION"
+    
+    sleep 0.2
+done
+
+echo "" | tee -a "$LOG_FILE"
+echo "==================================" | tee -a "$LOG_FILE"
+echo "Monitoring completed: $(date)" | tee -a "$LOG_FILE"
+echo "Total samples: ${SAMPLE}" | tee -a "$LOG_FILE"
+echo "Log saved to: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "==================================" | tee -a "$LOG_FILE"
+echo ""
+echo "To analyze the log, send the file to me or run:"
+echo "  grep 'CPU Temp:' $LOG_FILE | sort -k3 -n | tail -10"
+echo "  grep 'CPU Usage:' $LOG_FILE | sort -k3 -n | tail -10"
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