I've been on NuvaRing for a little over one year, and I have worn...

I've been on NuvaRing for a little over one year, and I have worn contacts for probably eight or nine months. In the last maybe, three months, I have noticed near-constant irritation in my left eye when wearing contacts. I read on the official NuvaRing site that contact lens intolerance is a side effect, albeit a rarer one to experience. I can't say whether this is actually from the ring or if I am just having problems. It happens with every new pair that I use, also, so getting out new contacts didn't solve the problem. Has anyone else experienced this contact lens intolerance? If so what was it like? Also, other than some random vomiting in the first week after reinsertion, I have had no other side effects.