Dear Patricia, Of course it's normal to have some swelling right after the treatment which would normally go down after a few days, but what you are describing sounds different than that. So there is another consideration... Juvederm is a humectant and it is water loving. So if you are well hydrated or retaining fluid because of sodium in your diet, the products will hydrate and hold more fluid too. On the other hand, if you become dehydrated your Juvederm can become dehydrated as well. This could account for the fluctuation in appearance.
It does not seem to be normal to have your lips look different from day-to-day. After treatment you might have some swelling, redness, pain or bruising. These are typically mild and only last less than 14 days in lips. After those initial days your results should hold steady for about 9 months. We like to see our patients back 2-3 weeks after treatment, especially if this was their first time having fillers.