Healing very well

So, I have had this weird "exfoliative cheilitis" since about 2001 ... at first, like everyone else, I thought it was a bad case of chapped lips and kept trying to moisturize - then it got worse - lips peeling badly, rubbing them in the shower (like most of you have done) to peel off the skin .. but they never healed. I have done a TON of research and tried all kinds of things from lip balms, diets, etc.
REcently(a little over a month ago) I started taking vitamins ... I take 4 cranberry pills at night, 1 omega fish oil, and a probiotic called Ultimate Flora (30 billion count), in the morning I take another 4 cranberry bills plus an evening primrose oil (just because I heard it was good for anti aging). I cant explain why, but my lips are healing. I can now smile, laugh, have elasticity and can literally go for HOURS without even noticing that I havent needed lip balm. I have no idea why this is working ... all I know is that for the last month or so Ive been taking a combination of these vitamins, switched to Tom's natural tooth paste and use Biotene mouth wash at night .. and Ive had nothing but great luck. Like all of you, my lips have caused depression, havent wanted to go out, noticce people staring at them and some will even say to otehrs "man my lips are chapped, I cant stand not having lip balm" almost as if I DONT KNOW how gross my lips were and they were trying to hint I needed lip balm ... I promise you my lips are like they were over 10 years ago before all this crap started! Do any of you have any ideas on why this might be working>??
I also wanted to add, that like some of you Ive had trouble with stomach irritability, constipation, became lactose intolerant the last few years, and have had weird skin things happening ... any feedback would be great on your ideas of why this is working?