I had my pfizer booster today. i didnt have any symptoms the first two doses. is it possible i wont have any this time? how long after getting a booster do symptoms typically occur if they are going to ? thank you?

Everyone is different and responds differently. Thus cannot predict in you. As Yoggi Berra said: "It is hard to make predictions. Especially about the future." I would ask some Drs in your area of NY who treat folks like you to do a prediction based on their experience in folks like you. I do not know you. well enough to help any more than this.

If you didn't have symptoms before, probably you won't this time. But who cares anyway? A few symptoms won't matter. It's far more important you be adequately immunized. Just do it.