Neck pinch!!!! Ow!

I have been cruising happily for a few days now. I gathered my courage and took an 800 mg IP6 by Source Naturals at around 3:00 a.m .
Then this morning I took 8 drops of Iodine and a 100 mcg tablet of yeast selenium. I have eaten my normal foods and drank some water, and I have developed a neck pinch. Right shoulder side. This is so similar although not as strong, as the one I had when I melted down with IP6.
I know the left shoulder is the liver/gall bladder. What is the right one??
I will not be taking another IP6 for a long while.