I was on 200mg Sertraline, I can attest to what @toro said. I mostly felt numb, like a zombie, I still cried though and felt sad and empty, apart from that I felt just meh. I am a 29yo female, for reference.
It is hard to get into Sertraline and to stop, the side effects were annoying (dizziness, body falling when getting out of bed suddenly, nausea, depression when getting off it).
I'm not sure whether it helped me or not, I wish the psychiatrist had told me what I was supposed to feel so I could attest to the efficacy of the med.