I am also thinking that I need to stop listening to nasheeds. I mean, I don't really listen to nasheeds much, but sometimes they are stuck in my head and so I listen on YouTube and then, bam!
Don't worry dude I think that happens to most of us. The emotional conditioning of Islam/'religion is insidious, I know from personal experience of leaving a cult previously it will takes a while for the emotional conditioning to subside.
Generally I don't have the 'feel' of Islam/theism, but every now and then it will be aroused by some art, or meeting muslims who I shared experiences with. A heartfelt Quran recitation is still moving to me - as long as I don't know what is being said.
Yesterday in fact, I was watching an atheist presentation of arguments against the existence of God. The irony was - he was mocking the Kalam argument by putting pictures of nature and dramatic music during it's presentation, but I began to get the old 'theist' feel back. I've heard the Kalam argument many many times, yet because of the photos and music accompanying it I began to feel moved by it on this occasion.
Afterwards I contemplated the argument anew, and again came to the conclusion that it's bullshit. It surprised me how the presentation of the argument would elicit such a response from me - but psychology can explain that

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