Ba,
If you feel that the
zoloft has stopped working, by all means, speak up and talk to your doctor. Only you (the patient) really know how you feel and it is up to you to convey that to the doctor. Most people dread telling their doctor how they're feeling or how much pain they're in, but honestly, doctor can only treat to the symptoms they see unless patients give them more to go on. Never hesitate to advocate for yourself.

Good luck.