I had a tough time of it last week. Each morning I woke up feeling like a forced recipient of collagen injections. But it wasn’t just my swollen lips. The inside of my mouth was raw and itchy. Brushing my teeth was agony, and I skipped it a few mornings, thanking The Universe for the fact I work at home. This was Monday: As luck would have it, I had just started this online diet thing and I made a lot of little changes in my diet over the past month. Trying to pinpoint exactly which one was causing the problem was tricky. I tried to revert back to my…