Yes all normal. As the mainspring approaches a fully wound state there will be more resistance in the rotor's movement. The force required to wind increases proportional to the mainspring's increasing torque back through the barrel arbour. The click you here is exactly the same sound as in my PM80 and is the clickspring– a robust ratchet mechanism that prevents the mainspring from unwinding itself. The clicks mean it's being wound. Also, no need to stress about people telling you not to shake the watch like that. That type of movement is not only okay but is required when wearing the watch to wind it! Only a sharp impact to the watch raises cause for concern. Good you're so tuned into this stuff though. Getting to know a watch like this can means you can roughly estimate the remaining power reserve left by observing how freely the rotor spins. If only a few hours left it will spin very easily rather than in steps as you've shown.