Thank you all for the support and advices. It's really nice to know that I'm not alone:)
Every workplace has advantages and disadvantages, as well as own politic. In my situation it's quite small place, everybody knows each other and I know that some people think the same way as me, but they don't want to make problems, conflicts, etc. Of course it's much harder when you are just a PhD student. Besides that it's hard to say who can I really trust and tell about my problems; once again small place and my observation that people like to talk about each other behind one's back.
I tried to keep distance to him and the situation, but sometimes it's just very hard, especially when I put a lot of effort into my work and he doesn't read it or say that is something very easy to do and I've spent to much time on it (even he has never worked on that problem, method, etc.).
The ideas about good food and taking a rest sound nice and that's true that it helps:)
I'll observe how the situation evolve, but to be honest I am thinking very intensive about looking for another position.

Hello,

I hope some of you have any idea what's the best solution in a situation like mine. I am on my first year of PhD. The beginning was really great and I've enjoyed a lot my project ( really fit to my interests). Unfortunately after few months I've found that the attitude of my supervisor had changed dramatically and from the nice guy he started to be my nightmare. To make a long story short - he pushed a strong pressure on me, required work which was impossible to do in the time he gave for doing it, he started to control when I arrive to work and so one. One of the hardest thing was also cessation of giving me any constructive feedback about my work. Our communication started to be limited to the results I have obtained in research and whatever I have presented him he looked and talked to me like I am the most foolish person he have ever met . As a result of that situation my meetings with him brought me to the strong frustration, a lot of stress, health problems and feeling of helplessness. My PhD is not in my country, so besides the situation with the supervisor I have got really hard time in a sense of loneliness and lack of understanding.
Now, after more than half a year of my PhD I am completely out of strength to continue it, but at the same time I know that is a great project, which I always dreamed about. Really don't know what to do. It is pretty sure that I can't change my supervisor (he is a director of the project) plus I am worry about consequences of my decision (do you know how look the situation with the funds for the project - can they required from me to give them back the money I have earned?)
I would be thankful for any advice!