Sertraline (zoloft) is a very common drug. It falls into the category of drugs called SSRIs, like prozac, lexapro, celexa, paxil, etc. Sertraline is generally used for depression, GAD and OCD.
For adults, the usual starting dose is 25 mg once a day. After 1 week, your dose may be increased to 50 mg once a day. Daily doses can eventually go much higher (oever 100 mg).
Negative side effects for many people can start very early after starting treatment. In many cases, these side effects lessen or completely disappear as your body gets used to the med. The positive effects of sertraline usually take 3 to 6 weeks to kick in.
Since your side effects were so severe, I would definitely called your doctor ASAP. Pharmacists also can help a lot.
I have taken sertraline and similar meds for years and did not have all the side effects you mentioned. Everyone responds to psych meds differently. Call your doctor or pharmacist ASAP. I wish you the best.