Since the introduction of EASA, you cannot transfer your medical records and licence from Turkey to an EASA state as Turkey is not a member of EASA so what Marchisio stated is not an option anymore.
You stated you converted to a DGCA license - this isn't the same as loosing your UK licence - you should have had both at the same time a UK (JAA/EASA) and a DGCA.
Your ATPL skills test in Turkey will not be recognised unless it is an EASA examiner on an EASA approved simulator - remember Turkey is not part of EASA so Turkish approved does not count!