I've been eating a paleo diet for about 2 months. I kind of eased into it at first, but now I am totally paleo with occasional white rice (in sushi rolls) about once a month. I eat only pastured meats, lots of veggies, some fruit (mostly berries), no dairy, no grains.
I am overweight and need to lose about 50 pounds. When I first started doing paleo, I lost weight but now I'm gaining. I'm also having other problems I didn't have before. Other than the extra weight, I've always been in excellent health. I was already eating a healthy whole foods diet. The main change for me with paleo was cutting out rice, traditionally prepared legumes, and oatmeal, and adding more fats (mostly coconut milk and oil).
I've always had a bowel movement every day--usually around the same time of day. Now it is usually every other day or even more. I'm eating lots of fat and a minimum of 6 servings of fruits and veggies (often more), so I'm not sure what's causing this.
Also, I've started waking up really, really early in the morning. I've never had this problem before in my life. I have dealt with insomnia in the past, but it was just having trouble falling asleep--I still always got a full 8 hours. Now I'm sleeping only 5-6 hours and waking up before dawn. I am unable to go back to sleep. My room is dark and quiet, plus like I said this is not a problem I've ever had before.
I walk daily and do yoga about once a week.
I'm starting to wonder if I was better off with traditionally prepared legumes, rice and oatmeal in my diet. Maybe paleo isn't for everyone? The insomnia and constipation seem like steps in the wrong direction. The weight loss was good, while it lasted, but that's moving in the wrong direction now, too.
One more thing: I don't track every day, but I check every now and again and my macronutrient rations are about 60% fat, 20% carbs, 20% protein. Calories are usually around 1800-2000. My carbs are usually around 75 grams a day.
UPDATE: Thanks for all the answers and suggestions. It's been a several months now and after a few experiments I did not abandon the paleo diet. I just altered it to suit my body's needs. It was interesting to go back and read this and see the struggles I was having when I first started--was that really only about three months ago?!?. I remember being very frustrated when I originally posted this.
Ultimately, I did add traditionally prepared legumes back into my diet about once a week. All of the problems I was having disappeared and weight loss resumed. I suspect I was low in magnesium (which is found, among other places, in legumes). It may also have been that my carbs were simply to low for me; the legumes added some extra carbs (on the days I eat them). I could have just taken the magnesium supplement as recommended by several PHers, but I prefer to get my nutrients from whole foods whenever possible and while there are other paleo-friendly sources of magnesium, this is what works best for me right now. I don't see the paleo/primal/ancestral lifestyle as a concrete set of rules anymore. I see it as a framework that I adjust as my needs change.
I did also add more fermented foods to my diet (kombucha, kimchee, sauerkraut...in addition to the legumes which I ferment before cooking); I think was also a good choice although the problems I described above had improved before I did that.