Jalilah,
I'm a 39 year old woman, and have been reading posts on this site for months... been doing this WOL for about 1-1/2 years, with a low compliance phases of about 6 months in the middle. I am at the end of my 1st BFL challenge...
Now for my 2 cents worth. Your body makes enzymes to deal with the kinds of foods you normally eat. That's why most of us feel so horrible when we change our diets in any major way. (Going low carb from high carb, OR falling off the low carb wagon.) The longer you've been eating a certain way, the more horrible the change will feel - whether you are going from an unhealthy eating plan to a healthy one (or the other way around). As a comparison, if you quit smoking, you wouldn't expect to feel great the 1st week (or even the 1st month) would you? even though it is a healthy change.
So, IMHO to feel good in any WOE, you need to do it CONSISTANTLY. I have been eating 20-25 g of carbs for 4 months AND doing BFL. It was hard to exercise at first, but now my body has adjusted, and it's great. I KNOW I this would not be the case if my carb intake was not consistant. (I have tried it before, inconsistantly...) The only confirmation I have had for my theory, besides my personal experience and my knowldege of physiology, is Dr. Bernstein's Diabetes Solution. He recommends keeping carbs at no more than 15 g per meal, and lifting weights. (He has been doing this himself for decades.) Now, he and most of his patients have no choice in the matter - they are diabetic. Anyway, I just wanted to make the point that it CAN be done to stay very low carb, and work out hard, but it will take a while (think months, not weeks) to feel good
and you must not yoyo on the carbs. Personally, I think it's worth it, and you'd better believe that I don't want to go through the struggle of getting there again...
BTW I have a hard time loosing weight too. I have gained probably 5 lbs of muscle doing BFL. (I can see muscles in my arms and legs and feel much stronger.) The scales weight has stayed about the same (143 lbs, 5' 3''), but I am pretty close to my goal. (I'd like to be 125, but I haven't weighed under 130 in about 10 years...)
Anyway, didn't think this would be so long, and I appreciate all your posts Jalilah and Natrushka!
--Alangaud