Miller effect conceptual confusion
hey guys did I write something wrong ,not allowed on stackexchange thats not allowed? Is that why nobody is answering me??

OK - let me try:

In the circuit diagram under discussion we have a transconductance device with a feedback capacitor. In contrast to an opamp the transconductor (term: OTA) has a large output impedance. And there is not only a current from the output to the input (feedback action) but also in opposite direction (from the inverting input to the output) which produces a voltage at the finite output impedance. 

In this context, it is important to know, that the differential voltage between both inputs has a finite value - again, in contrast to the opamp where we always assume that this diff. voltage is so small that we can neglect it.

As you can see, we have two currents through the feedback capacitor. If we treat both currents separately it seems that they would be in opposite direction. However, if we take into account the correct sign of the driving input voltage and the minus sign of the output current we see that both currents have - indeed - the same direction.
And, yes - you can apply the superposition rule as long as the device works under linear conditions. 

(Comment: It is recommended to treat (calculate) both currents separately and use superposition because the "feedforward current" is driven by a voltage - in contrast to the "feedback" current which is the output current of the gm device.)    

Result: The current through the feedback element is much larger if compared with the (feedforward) current that is caused by the input voltage only. That is principle content of the MILLER effect.