Access of my data via API

[LeBill]

Hello gang

I try to access my data via the fitbit api, The Authorization portion work great, I can see my app in my user setting, I have a brand new access_token. But I cannot get any data from it always receive a 400 error.

Here my php code

$url = "https://api.fitbit.com/1/user/-/profile.json";

$auth_header = array("Authorization: Bearer " . $_SESSION['access_token']);

$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_POST, true);				
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_HTTPHEADER, $auth_header);	
			
$result = curl_exec($curl);

$results = json_decode($result, true);

$result is always 

HTTP/1.1 400 Bad Request
Server: cloudflare-nginx
Date: Tue, 16 Aug 2016 14:56:45 GMT
Content-Type: text/html
Content-Length: 579
Connection: close

The weird thing even I I remove the header, I always got the 400 error without any error form the fitbit server.

Don't know why ????

Please help :O)

Regards