Lesson 3 Vieird behavior of plane

Hello everyone,

In lesson 3 I have noticed couple things that are unclear for me.

  1. I have seen people complaining that cessna is slowly turning to the left constatly. Community made a conclusion that it is because of the weight of pilot.

    But In my case, for aome reason, the airplane turning slowly to the right. Am I missing something or maybe I am not alone with that?

  2. I am not sure whether I will be able to explain correctly what happens, but I will try.

    In a few words, even after I trim my airplane for straight and level flight after couple seconds it starts to increase and after some time to decrease altitude ( e.g +400 -500 fpm). And sometimes the plane starting to bump like a small turbulence or wind. But in start lesson menu I see that weather is not windy. Is this is because of wind?

In case 1st issue is something that I can cope with but 2nd one is making really hard to pass lessons.

I am using Microsoft Extreme 3d pro yoke

Thanks in advance for your suggestions and replays.