>> But I have had a feeling of "I came back" which I have solely after waking up from anasthaesia.
> These sound like anaesthetic side effects.
General anesthesia[0] used in surgeries are effectively artificially induced comas. The pre-op discussion with the anesthesiologist includes them describing this and that there is a very real risk that you will die from its usage.
Regaining consciousness after having it applied most certainly invokes a feeling of "I came back" and has nothing to do with side effects.
Source: I have had two general anesthesia[0] and one epidural[1] surgeries.
>> But I have had a feeling of "I came back" which I have solely after waking up from anasthaesia.
> These sound like anaesthetic side effects.
General anesthesia[0] used in surgeries are effectively artificially induced comas. The pre-op discussion with the anesthesiologist includes them describing this and that there is a very real risk that you will die from its usage.
Regaining consciousness after having it applied most certainly invokes a feeling of "I came back" and has nothing to do with side effects.
Source: I have had two general anesthesia[0] and one epidural[1] surgeries.
0 - https://www.mayoclinic.org/tests-procedures/anesthesia/about...
1 - https://my.clevelandclinic.org/health/treatments/21896-epidu...