Yes. I convinced myself of the existence of God in a generic sense through philosophy and weighing the merits of the points put forth by various theist (mostly Christian) and atheist debates. I thought that the theists always came out stronger. First I was more inclined towards Islam, but gradually saw the flaws but still didn't like Christianity, so I spent a lot of time looking into Vaishnava sects of Hinduism, specifically the more monotheistic tendencies like that of ISKCON. I never really saw too
many flaws in that, but I had begun to pray and meditate, and I asked God about various figures and whether I should follow them. I asked about Muhammad, the Buddha, Krishna, etc. and I began to ask 'Jesus Christ', and when that happened, I felt a violent pressure change in my ears suddenly. I believe that this was an answer from God, because I have no other way of explaining or replicating what happened. Before that, I had had some minimal interactions from God, but nothing like that, but that at least made me convinced beyond the intellectual level that God was indeed real. It's a strange story, though.