The first week is the absolute worst! I had headaches,muscle cramping,in alot of my muscles where I would keel over,dizziness, vomiting, you name it if it was unpleasant I had it.
Thank goodness I was off work when I started it..cuz my brain was not firing on all cylinders! I napped quiet a bit.
Oh yes I was always freezing too!
As time went on the majority of my symptoms went away..
I was also going cold turkey from being a major Regular Coke drinker too soo that added to everything.
Make sure you drink your water and take your supplements as prescribed.
I also take B12, VitaminD,Omega.
Give your body a chance to adjust.. I felt like Road Kill the 1ST week and it passed.
Good Luck, it will get better,Roo2