Well - I'm possibly going to have 2 different stories for you, but Dude and I are different people and both of us couldn't take Zoloft.
Dude was prescribed it for possible BiPolar (BP) when he was 10 years old and at a Residential Treatment Center (RTC). Within a week he had a better attitude. Noticeable cheerfulness, calm, helpful - like a completely different child. I will note also for you he's 20 now and we trialed 62 medications in his day. With that said - 2 weeks later? He tried to hang himself in his closet, staff found him, and took him to the ER. They immediately took him off Zoloft, held him in the hospital, and changed his medications.
Some years later when he was arrested and put into Department of Juvenile Justice? Despite warnings on my part to his counselor via the phone they put him back on Zoloft and within a week? He tried to hang himself again from his bunk with a sheet. He tried to refuse the medication and they put him in lockdown, took his lunch and did other punishment measures. When he called me and told me they had put him on the medication I called staff immediately. While his counselor was on the phone with me - she got the call that an inmate had tried to commit suicide. I didn't know for sure what was going on - but I had a suspicion it was my son. Sadly I was correct, fortunately staff had been watching him.
In between both of those instances my doctor placed me on Zoloft. I never made the connection about Dude, filled the prescription and after three days I literally saw fairies on the side of the road. I'm not kidding. I was driving my SUV, was the happiest I think I have been in my life - EVER. Even posted here about it, and commented that I literally knew WHY people did drugs. IT.WAS. FANTASTIC. (I was high as a kite). It wore off on about the fourth or fifth day and things leveled out, and I will admit that in my life I have not been much of a pill taker, but WOW would be an understatement. I also tried Paxil - it almost killed me, and one other AD - but ended up in the hospital over withdrawls too.
Both Dude and I were told that a lot of times Mother and sons will have similar reactions to AD's. I too was suicidal on Zoloft - but not to the point of actual suicide. I just kept planning it and got great joy from the thought process of planning it and didn't want to be interrupted or bothered. Oddly enough my thoughts were about hanging myself. My therapist said it's called idealizations of suicide. When DF sold our boat? I was angry because parts of my plans included using the anchor...it was very odd, but I discussed it with the therapist and because I knew what I was doing/talking about? We decided I was lucid enough to not be hospitalized. (I was also lucid enough to laugh at that because Dude was really at his best at that time and would have welcomed a break)
Not trying to scare you - just watch her closely. AD's affect everyone differently.