OK, so one at a time,
so does research have its own category that also must be meet with research experiences?
Sort of. Some schools will look for it. These are generally the 'big name' schools with strong histories of research effort. To get an idea, you can look at the USNews rankings to get an idea of NIH dollars each school recieves. That will tell you, relative to other schools, how much emphasis that institution places on research.
...What if i dont like being in lab all day and playing with fancy pippets and gels?...
That's OK. Not everyone does. The idea is that you have an idea of what research is like, learn how to find answers to questions (using reference materials), and begin to develop critical thinking skills.
...Do you need some research, maybe not lab related but perhaps in some other area?...
This touches on the above - research topic isn't as important learning how to read technical articles and how to use a technical library. There are many fields where you can learn these skills without touching a test-tube. Clinical research often relies on patient surveys, chart reviews, and following docs in clinic.
...or does research not have its own category?...
It is generally treated separately from employment, volunteering, and clinical experience.
If you do some research as a volunteer (or employment), then I consider it
both, and I would categorize it on your AMCAS
however will help you the most. This is outlined in the FAQ, but if you've already got 10 volunteering experiences, then the volunteer-research work you did should be categorized as research experience to make you look more well-rounded.
...will it hurt your chances if you have very little or any?
If you're applying to a big name research school (see above) then it might. For most of us mere mortals, it won't change anything.