Affects of Zoloft for social anxiety ?

I started taking a low dose of zolof today ( 25 mg) to help with my anxiety. One side affect is drowsyness. I'm drowsy, does that aim the medicine for my anxiety is starting to work ?
Side effects of Anti-Anxiety drug?
Answers:    Yes, you will feel sleepy for the 1st week or so and later it will level off. I own been on it for 2 years and it works pretty well. Just be sure you don't in recent times stop taking it because you will feel weird...taper stale it.