I'm really sorry you're having a hard time with the dose increase. I agree with Payne about the need to talk with your doc urgently about the increasing suicidal thoughts.

Also, I'm wondering if the increase in Zoloft was too much? Did you go straight from 100 mg to 150 mg? That's quite a big leap. I'm on 100 mg right now and I'm supposed to be going up to 150 mg too but I'm going to 125 mg first. So perhaps you could talk to your doc about going up more gradually?

Did you have any of these side effects on 100 mg per day? If not then that's a good sign. Either way, I really hope you're able to talk to your doc very soon and that you start feeling better.