Amy,
Measles Mumps and Rubella are all still actively reported to the CDC in the US. in 2006 there was an 'outbreak' - mostly among college students, but that doesn't minimize exposure to little ones. I won't sit here and tell you why you need to vaccinate. clearly you know the benefits. :) Until the US closes it's borders entirely with countries that have not come as far as us in preventing these diseases, we will always be exposed. that's a fact.
If you are concerned about another reaction, and I certainly cannot blame you. I have never seen one personally in any of my 4 children, but I know it would scare me to see one. Talk to your doctor about using a modified vaccine schedule. Most are pretty good about this as it's a hot button topic. dr. Sears website has a modified schedule if you are looking to follow that. and he also has a list of doctors who are willing to work with it.
Don't take it personally about the doc seeming upset. They are probably getting a lot of parents who clearly dont understand the benefits v risks and are trying to opt out of vaccines all together... i dont mean to offend anybody, but there you have it.
People dont' understand... even the simple act of gardening with your kids... a seemingly wonderful activity, can expose your child to tetanus. it's in the soil.
I personally plan to go every ten years to have my blood tested for antibodies against those diseases that we vaccinate for. My children (12 and 10) are getting boosters too.
You wouldn't drive your car without a seat belt or car insurance would you? Vaccines are the the best insurance policy we have to keep from getting these terrible diseases.
Good luck, I hope your doctor is more accepting of your proposed schedule. You could always call and speak with one of the nurses... tell her you are looking to use a modified schedule and want to know which doctor is most accepting.
Good luck!
Edit note: I jsut wanted to add, that at some point we have to trust our doctors. If you don't trust yours, go elsewhere. Their medical degree's have to count for something and the research we do on the internet is good at informing us what the doctors dont have time to tell us at every appointment, but when we ask our doctors questions, we have to feel confident they are not just spoon feeding society what would be dangerous or careless.