Hi Shellb,
I agree with Sarah2, it takes around 7-8 hours for half the dose to leave your system so it will definitely have gone at the ten day mark. Whilst norethisterone is associated with low mood/depression and tummy upsets, my gut feeling is that fluctuating hormones and you worrying are causing you to feel the way you do.
My anxiety levels late last year caused absolute havoc with my body and symptoms.
I've previously suffered with generalised anxiety so I can relate to the nausea, upset stomach and generally feeling down. I've had ADs in the past, which worked really well for me but this time I decided to see a psychologist. We have been working together since December and I can honestly say I am improving. I still have my ups and downs and weird symptoms but I have great coping strategies in place which really help. This might be a route you could take?
Take loving care of yourself

Galadriel x