How long does trazodone side effects last?

I was given trazodone for me to fall asleep easier at night and not to be up till the next morning.

Well since it was my first time taking the trazodone, I had allllll the side effects from it and 1 severe side effect, which was the constant panic attacks.

My ER Dr said my bloodwork and urine sample came back earlier and that he doesn't want me to take the Zoloft or especially the trazodone anymore till I talk to my psychiatrist tmr. So he gave me Xanax for now.

But since I still have stomach pain and nausea how long would that last till? I forgot to ask him.

And what can I do for the stomach pain?