Hi GB... Welcome to Anxiety Zone...
Well, let me fill you in a little on anti-depressants and Zoloft.
To begin with, you are currently on a sub-therapeutic dose, at 25 mg. 50 mg is considered the lowest therapeutic dose for Zoloft, and most people end-up on a 100-150 mg dose. I even have two friends of mine that are on 200 mg.
Anti-depressants also don't work like other medications you are familiar with. They work by encouraging the growth of new brain cells and their connections, in the hippocampus region of the brain. This takes time. One will usually see degrees of improvement between 3 and 12 weeks, and even beyond that period, once a therapeutic dose is reached. Also, the norm is to remain on anti-depressant therapy for a minimum of one year, before considering going off.
I am on two anti-depressants, GB, and plan on being on some anti-depressant therapy for the rest of my life.
There is often start-up side effects with anti-depressant therapy, and you sure have the classic ones. Usually, the side effects will fade dramatically after 2-3 weeks of starting the AD therapy. However, if you go up on the dose of Zoloft, lets say from 25 to 50 mg, you might see a temporary return of side effects, but this is usually short lived.
Hope this helps to answer your questions.
Hang in there, and give the Zoloft time to work. The very best to you, GB!... Chuck