I totally feel like this too. I'm just over 2 months out. Everything I've had to eat makes me sick, no matter how little or how slow I eat. I'm hoping it will pass soon.
I've been using the NuvaRing for years and I love it. Never noticed any weight gain. I do love that its made my flow VERY light and only a few days(usually less than 4). Total bonus for me. Talk to your Lady Dr. about all your options, but I love it.