Dear Evak,
I so totally see my situation in you...I am exactly in the very same situation. I understand what you are going through. Each time in my committee meeting or just chatting with other professors in the faculty, I realize that I am doing a great job, but I never hear that from her. In the beginning I used to consider that I should take this as a challenge/motivation and push ahead with a smile..but I realized after it didn't last long, I am way beyond exhaustion, with antidepressants.
See if you can talk to your committee members or a counselor or ombudsperson maybe? I completely agree with Mulrine, whats there to lose anyways? I am sure it will only help you. I am also considering talking to my committee and see.
All the very best to you. Take care of yourself- which is very important!
See if you can take a nice break.

Hi Pushfor 10,
Very kind of you- I love these- thanks so much!! I am new to this forum and was eagerly waiting to get a response.
When do you plan to submit your thesis? Thanks again- PhDScientist

Hi All,
I started my PhD in fall 2009 and I did my field work abroad and now doing data analyses.
I am at the point of losing all motivation and giving up at this stage...It has been incredible amount of work. But I am at the verge of breaking out. The point is things have been challenging with my supervisor. My supervisor always compares students with each other- which is pretty annoying and discouraging. Right now, my funding has stopped too. My supervisor gives me unrealistic timelines if I say anything about it, she hates hearing anything. On top, my supervisor rarely gives a compliment....so, that is another painful factor here. Even if we do a great job, I hardly hear any good feedback. I also checked with other students in the group, they feel it too.
I constantly work on my data/writing. My data entry [i did them- compared to others in my lab who had support from undergrads/field workers] has taken so much of my time!!! I don't think my professor understands ...each time I explain, all that she cares is to see my final paper with everything with unrealistic timeline. I find this so discouraging. I put in so much hours, working non stop...but she keeps treating me as if I am not doing enough. I started my program with so much love for science and now, I lost all my motivation and energy. I am hoping to hand in my thesis by the fall 2013. I am exhausted completely. I am seeing a counselor too, who is super helpful. I am so down and discouraged with everything. I need some words of encouragement!