I'm not telling you to assume the worst, but please do not assume this is benzo-related. If it were just vision issues or dryness, that's one thing. When you start mentioning puffy, swollen and itchy along with pain, that's where I become concerned. You may have a minor infection related to the original symptoms (and rubbing your eyes). This is your vision. Don't play games with it.
I'd say make an appointment with an eye doc. In the meantime, get some eye wash solution (you can either pour it directly in or use a cup that comes with it) to keep it clean and sterile. If you suspect pink eye, you can buy drops for that (and I've seen homeopathic, affordable versions in drops and cream). Do you have scaly or itchy skin on other parts of your body? You may be dehydrated. Make sure you're drinking LOTs of water.
Going to the eye doc isn't an option for some folks, so if nothing else, I would post your issue in the eye health section of Yahoo Answers (professionals, for some reason, hang out there and are happy to give general advice - I had an optometrist there happily explain stuff to me when my eye doc was talking in circles).