Let me start by saying I have absolutely no handy man skills so this may be a dumb question. Went into my bathroom this morning and turned on the light switch. The bulb blew out when I flicked the switch on. Figured I just needed to change the light bulb. I was in a rush so I forgot to switch the light bulb. Fast forward to later this morning my wife called not knowing the bulb was out and said the lights in the room next to bathroom were out and the bathroom light was out. She went and flicked the breaker back on. Is it normal for something like that to happen where a light blows out and it trips the circuit breaker or should I be concerned that there could be an underlying issue?
In any event, if you replace the bulb and the breaker doesn't trip when you turn on the switch, it should be fine.
The breaker tripped because that line pulled over 15 amps. Breakers do degrade with usage and repeated trips. If it happens again, call an electrician.
As for the refrigerator in the gfc, fridge should never be plugged into a gfc circuit, and they can cause them to trip sometimes, but gfc outlets sometimes just go bad, and trip randomly because they become assholes. just replace it.