Hello Loula,
Welcome to the forums.
Knowing such thoughts aren't true helps a little, though you keep having to remind yourself: not true, not true... the fear & anxiety are harder to cope with. Has your doctor helped you learn a variety of ways to respond to the fears & to calm the anxiety?
I agree with everything Sophie_M has said. Talk to your doctor, explain how these symptoms are effecting you.
I've stopped an antidepressant, with my Psychiatrist advising me & tracking the effects all the way through. We did this, together, very slowly indeed. He helped me understand the withdrawal symptoms, which I found most helpful to know. As odd as a few symptoms felt, I understood what they were & why I felt them. I was able to then pause & think & settle myself when they occured. It was like saying to myself, slow down, no need to pile more anxiety on top of this anxiety because we know what it is.
At the time, I was volunteering some time at a public hospital, so I felt comfortable to tell some people around me, what was happening & why. Realising they understood was a great help, too.
If my symptoms of depression had resurged, I accepted I might have to use antidepressants again. My PDr & I had spoken about that, too, & also about the possibility I could manage my symptoms myself.
Today I cope reasonably well, with some difficulty, still to be worked on... without medication, because, for me, it seemed to not be doing anything to help my low mood & depression at all, as I had thought.
Your journey won't be the same as mine, but you do have choices about how to manage your symptoms.
All the best,
mmMekitty
