Laravel 5.2: Things are being changed after multiple page reload?

This is something strange happening from last couple weeks in my project.

Whenever I make any changes in controller, balde or any file, changes take effect after multiple random page refresh.

Even I have tried with artisan commands:

php artisan view:clear
php artisan cache:clear
php artisan config:cache
php artisan route:clear


// Cache & Session setting in .env file
CACHE_DRIVER=file
SESSION_DRIVER=file

I am facing this issue first time, I don't why it's behaving like this?

Thanks

via Chebli Mohamed