Number 7 - you might get a little more help or response on the Newcomers Thread and/or the 2015 thread.... those two are threads that are very active.
Everything you describe was very typical for me on P1.
Constipation I'm sure you know is also part of low thyroid, but generally a problem on low/carb low/fat plans.
Magnesium Citrate was my saving grace - pill form every night and a little in the morning, and once a week or so the liquid form.
I also had about 2 weeks loss a month of lbs, 2 weeks loss of inches.
I think it's really important not to term things bad and good

- it's all part of the process, which is all good

!