Thank you for the query.Zoloft
should not be stopped suddenly. Otherwise it can cause symptoms mentioned by you. Zoloft treatment should be started gradually and it can cause such symptoms for few weeks. Usually this symptoms are temporal and go away after some time.
Other possible reasons of your symptoms are stomach issues like peptic ulcer
, stomach inflammation
or Helicobacter Pylori infection
I suggest you to visit your doctor and clear the situation with Zoloft. You should also consider gastroscopy to check your stomach.
Hope this will help.