To treat her irregular heart beat, Miley is SUPPOSED to live a quiet low-key life, except she doesn’t do that AT ALL!
Miley insiders tell Heat magazine that Miley’s heart problems are made worse by her constant partying.
Also, despite only being 20-years-old and in her DRINKING PRIME, she has devastating hangovers.
"She has horrific mornings after, which are more like days. After the ‘Bangerz’ [album] launch party she stayed in bed with her dogs for a couple of days just getting her strength back.”