Hi. I have had difficulties in the past with going up in medication. For me, it was for anxiety, and not depression reasons though. When I was on Lexapro (Cipralex in Canada), when I increased the dose from 10-15mg, I started to have daily panic attacks, and when I decreased it, they went away. So I do know that sometimes, too much medication does cause more harm than good. Each person's needs are different. I tend to be on really low doses for medicine, and they work quite well for me. Doctors are quite surprised about this, but it's just how I am.

I do think this did also happen when I went on Luvox. I was on a low dose for 2 weeks, and then increased it, and then

So yes, I do believe this is possible. I would suggest you tell your doctor, and go back to a lower dose, if possible. Best of luck.

Also, this is my own experience, I am by no means a doctor.