You seem to be quite worked up so please relax a bit. Let us try to understand your problem. first, did you consult a psychiatrist
or a GP?. Feliz-s is Escitalopram, an SSRI
prescribed for Depressive disorder,Anxiety
disorder and OCD
as well. So I assume your doctor must have prescribed you after carefully considering all pros and cons. it is not right to think that it will lower weight. It can cause reduced appetite but this side effect is temporary . this is often associated with nausea
so nobody should think of losing weight with Feliz-s S/E has to be tackled by psychiatrist, when present. They have sexual side effects as well like reduced libido and delayed ejaculation. All SSRI have similar Side Effect Profile. Decision to take medicines has to be taken by considering risk-reward ratio -that means whether the disease is more trouble some or the Side effects. For Example-Pain Killers can cause stomach ulcers that may bleed you to death- do you stop taking pain killers!!!
make an informed decision in consultation with your doctor
best of luck