how many nuts are you eating? How much fruit? When I first started trying low carb, I tried varying levels, going over 150g for a week or so to see if it helped and it didn't. Also, there's the 'low carb flu' that lasts longer for some people - for me, it was about 4 weeks.
I was kind of wonky until I did some intermittent fasting, which seemed to help. I just skipped a few meals, and that seemed to help my body get over some of the weirdness I was feeling.