Info!!!

For all Bulgarians who work in the European Union , be aware that you have to present
a form E104 in Bulgaria as evidence that you are insured somewhere else.

Step1:
https://inetdec.nra.bg/pls/pub/home.html#/selectService:6,2,rep.HealthStatus.home

Check until when you were insured

Step2:
Go to your insurance company and request this form. If you are insured by vzp, it's just across Student Agencies bus stop. Get on the first floor, take a number and wait.

Good luck :)