Day 2, First fast ever for me. And some questions! (Arthritis)

I have started Juice fasting, originally I was going to do The Master Cleanse but I thought it was a bit to extreme for a beginner like myself.

I am keeping a Blog of it all here: http://server30118.uk2net.com/Blueblog/

Just a few questions

Taking Senna pods before I go to bed, is this enough for eliminating the horrible stuff?

Drinking on average around 2 litres of Water per day, and I am juicing about 3-4 half pint glasses, I feel great so I'm sure it's a good balance.

I use the following fruit/vegetables mostly,

Carrots
Apples
Pears
Lemon
Parsley
Strawberries
Celery
Ginger

I usually suffer from quite a bad back but I have noticed a signifficant decrease in pain.

Oh yeh one more question, what about taking oils whilst on a Juice fast?
I have Olive Oil, and Cod Liver oil which I sometimes take with soup when my Arthritis flares up. I have been clicking and crunching somewhat on this fast, and it would be nice to add some oils in for my joints.

Thanks all, and peace to you all

Life has become a surreal dream for me, but it's real. Takes awhile to get used to lol!