Below is my .htaccess file for my website on shared hosting - I'm attempting to send all requests to index.php with parameter 'q' where I wish to parse data etc... unless it's an existing file or directory.

So my issue, if I attempt to browse to an actual directory expecting to get an unauthorized notice (options -Indexes) it sends me to my index.php and I also noticed that print_r($_GET) it gives me this: Array ( [q] => 403.shtml )

AddDefaultCharset UTF-8
Options -Indexes +FollowSymLinks

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /

RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

</IfModule>

Help would be much appreciated if possible :)