I've had lots of signs, but I'll tell you one of the first.
I was attending a class at church, not because I wanted to, had a bad attitude to boot, but I went. Somehow I learned about God in the class even with my attitude problems. I had an asthma problems and for some reason large buildings and this church included gave me asthma problems. On the way to church I had said, "I was really going to suffer going three days in a row," for this retreat that finished the class up. I did not pray for a healing, or even think of it. At the end of class, they called people up front who would like prayer and I had no intention of going, always stayed in the back. However my ride went foward and therefore I was stuck and sitting in the back by myself feeling stupid and so decided to move foward to pray for these people too. The moment I went to the front row, it was like a switch had been turned on and I had a very strange warmth deep in my chest and I felt I was being touched by Jesus at that moment, for no reason but for Him to show me His mercy, to ldemonstrate His character to me. Years passed and I only needed asthma inhalers if I got a cold. Basically, from that moment on I was without the need of medicine. It was real, not my imaginatioon. That is one story, the truth.