Hey pix xx
Can't advise about the nicotine with your condition, but if it's safe for you, I'd recommend something like this instead of the ELites...
http://totaleliquid.c...61_111&product_id=128
It packs far more of a punch than those lookylikeys, and works out cheaper in the long run as you buy 'juice' instead of cartridges.
I've been extremely successful and not had a fag since April on a version similar to that linked above.
I've also, very nerdly, joined a forum, which has helped me immensely, brilliant to tips and hints and general encouragement.
http://allaboute-ciga...?action=newestthreads
Good luck :-)