List all sessions from current user
You need to have VIEW SERVER STATE permission on the user account.

GRANT VIEW SERVER STATE TO &lt;username&gt;;


This will need to be granted by someone with sufficient privileges and will allow you to view all sessions when you run commands like sp_who or sp_whoisactive.

If you are worried about security implications of this permission, this post may help Security and Performance implications of &quot;View Server State&quot;

Once you have the permissions to view server state, you can then restrict you just your user by passing that in as a parameter

EXEC sp_who [Domain\mark.sinkinson];
EXEC sp_whoisactive @filter_type = 'login', @filter = [Domain\mark.sinkinson];