What to expect with Zoloft?

I think that you should seek out a outpatient MD or PSY for further investigation. I don't really think they did as much as they could for you by throwing an SSRI on to you without diagnosis like if you have BIPOLAR, etc. If you were diagnosed with biplar you can't take an SSRI without a moodstabilizer or you will be catapulted into mania, or the agitation and anxiety you feel. I would also be concerned about the head pressure. As for the anxiety goes, you probly need an anxiolytic to get you thru til the anxiety portion of the Zoloft kicks in: usually within 4-6 weeks. Zoloft usually works on depression first, then anxiety. Ok. I'm done preaching now.lol
As far as what to expect, within a couple of weeks, the heavy debilitating depression should be lifted as well as your feeling of well being. The dose is small so they can up it if a month goes by and you feel you need more. You will feel like doing things again. You might not have such a feeling of doom and gloom and able to rationally solve these normal stresses and even new stressors that come up with life.
For example, years ago i was dealing with an abusive b/f and got so depressed i dropped out of grad school and went to long term therapy. Still unable to kick this guy to the curb for numerous reasons and also after he messed up my self esteem, I was started on PAxil. (similar to Zoloft). Weeks later i was feeling better and started up my classes again and broke up with the fool. All the while feeling a confidence and strength i probly had all along but didn't see thru the dark glasses of depression.

Zoloft has helped me a lot, but allow 6-8 weeks before reassessment. Also be careful to stick to the same brand if using generic, I learned this the hard way.
I also dislike having to take medication but I dislike anxiety and depression more!