Question about dry drowning?

ok im freaked out, i watched something about dry drowning the other day and the night before last around 10 pm i was swimming and inhaled water through my nose and mouth. im worried about it and the more i thought about it the more i freaked/freaking out about because now after reading the symptoms i feel like im having them. this is ironic because i am a lifeguard. but i am freaking out about this. could this cause me to have anxiety? any help is appreciated.