I love my Bellissima but I feel as if my breathing is obstructed. What type of adjustment should I make to improve my breathing?
Sounds like you need a bike fit. The most important thing of any bike purchase is to make sure it fits well. This is a two part process, the feedback from you and the experience of a trained bike fitter.
You may need to come up on your front end, or wide handlebars. All things that someone with a trained eye and many questions can easily fix.