I don't notice a negative effect on my moods - as a matter of fact I feel quite the opposite - my moods are quite even. More so than when I was on carbs. I also do fairly high fat Atkins - about 75-80% of my calories from fat, so that may affect the mood.
I/F = intermittent fasting. It is something that I have just recently started after a lot of careful research - and am doing to take care of some other issues - mostly not weight-related (inflammation being primary). It certainly isn't for everyone, and I am still evaluating whether it is for me, but from the results I have noticed thus far in how I feel, I believe it is something that I will continue. There are a lot of threads that you can search for if you want more information.
My thyroid story is a long, sad one (and probably familiar to many of you) - started gaining weight rapidly in my mid-20s after always being pretty active (was a competitive body builder), and remained active - eating about 1200 calories per day and spent hours a day in the gym, taught 12 aerobics classes a week - and the weight came on in spite of that. I was also in constant pain. I went from doctor to doctor saying "something's wrong - help me" and they would tell me I was overestimating how much I exercised and underestimating how much I ate, and I was just fat because I had no self control. Grrrrr.... Oh - and my chronic pain, dry skin, constant coldness, hair loss, etc., was because I was fat - and if I just got some self-control and lost weight, it would all work itself out. Nice - huh?
This went on for 15 years, until I found a doctor who listened to me, tested my thyroid and put me on Armour thyroid a little over a year ago. Thank God! Between that, discovering my sensitivities to certain foods, and figuring out that I was hugely carbohydrate senitive and needed to eat the LC way (thank you Gary Taubes), I've been able to start to figure out what works for me and my health has done a complete turn-around.
What a relief. I feel like a new person, and it feels good to be able to swing a golf club without aching all over and being restricted by my body, and to hike up a hillside without getting winded or having my legs rubbing together.
I'm really grateful - and a year and a half ago I never believed I'd ever feel this way again.