Hi Anita .. sorry you had such a traumatic experience .
if you are still on Mingle .. I have a couple of questions which might address your experience .
You say you died …are your sure ? Did they perform CPR . It is possible for breathing to stop but for the heart to continue beating and for a pulse to be present . You mentioned everything went black .. which is a likely indicator you passed out .. does not necessarily mean you died .
When a person suffers severe respiratory failure they are generally hypoxic .. which means there is reduced oxygenated blood flow to the brain . This can result in confusion , altered mental state/level of consciousness .. which can be life threatening . That may well be why you experienced what seems to you like an out of body experience .. a lower level of consciousness . That may well feel like being in an in between dream state .
Did you have a high fever ? A fever can also contribute to altered consciousness /confusion and delirium. In those states .. understanding reality is sometimes dysfunctional .
Sounds like you were very unwell and you are still processing what happened . Sometimes there are no answers and if dwelling on ot causes you distress .. your doctor is right and it may be helpful to ask for counselling support so that you can move on from this experience .
Hope you are doing better now .