David.
Zooming your pictures shows the meter to be set to the 0-20 amp scale, so the readings refer to amps not milliamps. That information confirms there is a significant power drain and explains the battery going flat overnight.
Previous similar problems on this forum show that pulling fuses has not helped in diagnosing the fault, so I suggest you get the car to an electrician who will be able to test individual circuits.
Before doing that please confirm you have not fitted any auxilliary equipment such as a dash cam or sat nav etc. that is connected to a permanent live supply, i.e. a supply that is not switched off by the ignition key.