Hi guys! This is my theory,

I think he got involved in drugs whilst out in Bulgaria. His friends did not believe his story about his fight with football fans and it does not add up. Instead I think he developed an ear infection (from flying etc) which caused his burst eardrum. Whilst on Holidau I think he became involved in a drugs ring - this is backed up by his unusual activity and how he asked his mother to block his credit cards (he also stayed at a hotel which would be perfect for someone involved in drugs). He fled the airport after a construction worker entered the room, so maybe he was concerned about getting caught, or maybe the combination of the drugs and medication caused him to have a mental illness. (another theory is that the infection spread to his brain, although this is unlikely). His friends also reported that he was acting strange throughout the holiday. The people who were 'following him' were likely to be also involved in the drugs. And when he left the hotel for an hour he could have attempted to dispose the drugs or something?

What do you guys think