My Ella, a 1 yearold blacklab/goldenretreiver cross has just suddenly developed some small dry lumps about 1/2" by 1/2" on her forehead and just a day ago around the ridge above her eyelids. She's not bothered by it, not scratching or they're not puss-filled. It almost looks like little marbles underneath her skin(maybe 3-4) along the ridge. She's had her shots and treated for heartworm, fleas etc.. you name it. We were camping almost a month ago, and haven't really done anything outlandish or changed diet. I can't figure it out. A local friend I ran into say's it might be common with Black Labs. Anyone might have an idea? I'd be very grateful for your insights.