I am very happy to report that my brother has been found, a long way from home, but otherwise safe and sound. I'm soo happy that there is no way I can be mad at him. Fingers-crossed he is returned safely tonight and I can see him tomorrow and give him the most massive hug ever.
Thank you to those people who messaged me, and the ppl who set up/work on this forum. Just typing out my original post, and knowing such a supportive site actually exists has been invaluable. Thank you so much everyone x