How do you tell if a red light camera flashed?

[kian b]

I was driving in Woodland, Ca the other day and it was pretty late at night. It was also raining. I was giving my friend a ride home, and when I dropped him off, I was in a rush to get back (I live in Davis, Ca, about 15 minutes away). As I was driving, I approached a stoplight. The light turned yellow and I began to deccelerate. Then, I realized I was running late so I stupidly pressed my foot on the accelerator and went through the intersection. I am 99.9% sure the light was still yellow when I went through the intersection, but it definetely turned red before I completely crossed the intersection. I freaked out and for some reason I think a camera flashed. I'm not sure if it was me freaking out or if the light did actually flash. The next day I was so paranoid that I went all the way back to Woodland to check to see if there was a camera on the light. Luckily for me, there was no camera. But for some reason, I still feel there was a flash. Was there maybe a hidden camera? Will I be getting a ticket? (Its been 10 days since the incident happened, and I have not yet received a ticket). Please help me!! I haven't been able to sleep for the past week!