Sertraline Blip - need some reassurance!

You should stop “

Hi, Gb!
Unfortunately, as these medications re-adjust abnormal brain and neurotransmitter functions they can also cause unwanted side effects. Insomnia and even increased anxiety commonly affect about 20% of users temporarily. They are very troublesome initially but they do, in fact, resolve.
You're experiencing what's called the "roller coaster" effect... and this too will resolve as the medication reaches therapeutic levels in your system.
Although most people begin feeling improvements earlier on it can sometimes take weeks before the medication becomes fully effective... and anxiety is a nasty bugger that resists treatment much longer than depression.
All I can say is that this sounds like a normal adjustment period that you will get through. On those bad days try just to think how happy your life will be in the near future!
Be patient and positive. Sertraline (Zoloft) is really an excellent medication with good reviews from users for treating many different anxiety disorders.

I have not taken sertraline, but I have taken all forms of antidepressants from SSRIs like sertraline to tricyclics like amitriptyline, and unfortunately, I have not been able to tolerate the sleep side effects of any type of antidepressant. I don't know what you're insomnia looks like but mine was incredibly vivid and extremely disturbing night terrors that would end in suicidal thoughts when I woke up. I had to quit antidepressants altogether. For me, that terrible side effect simply was not worth any benefit. I'm happy that I did, and I've never looked back at least not yet. And for your information, this was just recently, only two weeks ago, that I titrated off my final antidepressant. Right now, for my anxiety (currently taking nothing for my MDD) I take buspirone and diazepam as needed for my social anxiety. I wish you luck, and I do hope that this is temporary and you will be able to utilize the medication successfully without the side effects.