Having had my fair share of medication for the brain all I can say is that you have my sympathy.
It takes about 3-4 weeks of going onto a new medication before it starts to work efficently. The symptoms you describe sound like the weening off from the zoloft.
If you are no better in a few days you must go back to the doctors and get a referal to a specailist who will put you on a more suitable medication that will take away these symptoms before they reach a point of explosion.
I know that my specialist put me onto a medication called seroquel that was very effective for me for similar symptoms but who knows it it would be for you?
I dont know if you are married but boy I was plain nasty to my family till it was brought under control.
So live in hope and badger the doctors until something gets done that works for you

Blessings and prayers for you