Hi,
I am 51 yrs old, have severe spinal osteoarthritis, and have had recent cervical surgery for spinal stenosis. I understand exactly what you are saying about the physical demands of nursing. Before you reinvent the wheel again :), please keep in mind that your LVN/LPN can serve you in other career fields besides hands on nursing. I too didn't receive my nursing license until I was in my 30's. Before that, I worked in a convenience store as a cashier, and had been a nurse’s aid while in high school.
I am currently one of two "Communicable Disease Investigators" for my county; the other nurse is a LVN as well. I also help run a "Travel Clinic" for vaccinations as well as vaccinations for local elementary school children. While these positions do have a physical aspect to them, they are far less physically demanding than working in a hospital or clinic. Before this current position, I worked for 10 years in Utilization Review and referrals. This position was as non-physical as any clerical position. I know several LVN/LPN that are employed in non-tradition nursing too. So don't give up, the jobs are out there, and it may well be worth your time to look into what local and national government jobs have to offer. Although with the state of the economy lately, I understand all jobs are a bit scarce. With your bachelor’s degree, this will be a real bonus to any employer.
Best of luck, and best wishes!
~Deborah
California LVN