PYROLURIA and Zinc plus Vitamin B complex

Hello,
last year I took a blood test and discovered I have elevated urine kryptopyrroles (0,18 units).
I decided to do this test on my own initiative, since here in Italy doesn't exist neither this exam nor the habit to do exams for anxiety or fatigue. 
Now, this is the problem. 
The therapy for Pyroluria is zinc and vitamin B6.
When I use zinc picolinate and b-complex my interior anxiety goes away within 4-6 hours. 
If I use them for more days, I develop a severe restless, chest stiffness and nightmares.
This anxiety is different from the previous one, since I don't sweat. 
I'm writing to know if anyone have these same symptoms. 
I daily take:
- 5mg of zinc picolinate 
- ½ tablet of b-complex
The thing that makes me wonder is that I take only a small quantity, I don't even want to think the effects for 50mg of zinc...
Now, I have stopped them, obviously.

The second question. 
My zinc blood level is 117 ug/dL [range 57 - 141]
so apparently I don't have zinc deficiency. 
Doesn't Pyroluria cause a zinc deficiency?
Is there a correlation between blood zinc levels and Pyroluria?
The thing that I'm sure is that zinc for my is anxiolytic and help my anxiety to cease. 
It's like night and day, but only if I use for 2-3 days.


Can be picolinic acid in the zinc the cause of increased anxiety? 
I have also an elevated kynurenine pathway. 
I also notice a delay in symptoms when I halve the dose, so 1-2mg of zinc takes anxiety one-two weeks to appear again.
It's like something takes more time to build up, I don't know...

Hope to hear someone else's opinion.
Thanks