I need help for my back!

I have sciatica in both legs (left leg only since this september, right since the begining)
I had an MRI Oct 2007 (injured in June 2007) the following is what is said on my diagnostic radiology report done last year october.
It says:

1. Mild to moderadte diffuse broad-based bulging in the disk at the L4-L5 level eccentric to the right.
2. Mild diffuse broad- based bulging disk at L5-S1 level with tiny superimposed posterier central disk.
3. Minimal diffuse broad-based bulging in the disk at the L3-L4 level. No spinal stenosis seen.

So lately I've noticed I'm getting worse depite my efforts of excercise, keeping from lifting anything more then 20 lbs. I take care of my older sister who was diagnosed with LAM January 2007. She has told me that I need to start taking care of myself, so I thought I would ask on here what I should/could do. I went to an orthepidic who brushed me off because I have Medicaid... Please help me find some relief.