*Must* I boil water, for Ramen Noodles? (Health concern)?

You should be just fine. The packaged noodles should not have any bacterial content at all, or they would not be allowed to be sold.

I have done it with hot water only many times and it was fine. But if You have a microwave oven, Open the paper lid about 1/3rd of the way, then fill the cup of noodles with cold water, close the lid back down loosely and microwave it for 3 minutes. It will be perfect. Almost boiling hot.

Any type of water would do just fine! It doesn't matter what tempature it is, because the noodles in the instant package/cup are always already cooked. boiling water is mainly used for just making the noodles moist and warm- and because it can serve as the broth, too. but just warm water can do that, too.

no, I always use the hot water in the water coolers. works great. I let them set for about 3-5 min.

no heath concerns, infact its perfectly ok to eat ramin without cooking it.... do whatever you want and dont worry