Sheri, there are lots of things you can do to make woodworking easier. One good example is having your router table at the correct height for you. As a rule this would be about 4 - 6" below your elbow. This eliminates bending or stooping which causes problems. My friend Frank had back problems so I built a table that was used while sitting on a swivel chair. That reduces the back strain a great deal. Something else that really helps is to buy a back support belt with suspenders. You can find these at Lowes or HD and they are inexpensive.
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"