Don't know about the health issues. As others wrote, that's what doctors are for.
I think most of us who vape find that flavors get old. Even gear gets old. I am running 7 flavors right now on different mods, a mix of tanks, RDAs and pods. Keeps me engaged so I don't smoke. Vapetasia has some other popular flavors if you want to stick with that brand (e.g., Killer Kustard and Pineapple Express, both are delicious though not tobacco flavors). There are so many brands and flavors though, whatever you enjoy, and whatever keeps it interesting so you don't get that urge to smoke (assuming you vape for this reason). That sounds expensive but as compared with smoking $100+ a week, it's relatively cheap to try out new flavors.
My long term goal - to give up vaping too. That's not going to happen yet, but for me vaping is a means to an end, a means that is working.