For the back pain
do get a Xray of the back done along with a densitometry
Start on a good calcium and vit D3. Take lessons in back muscle strengthening exercises and posture precautions from a physiotherapist.
If calcium levels are normal then bisphosphonates
can be started.
For the deranged liver tests I think that alcohol might have caused some irreversible damage which is leading to the elevated blood levels even after you are abstaining.
Kindly consult a Gastrophysician for the same who might advise liver protective medicines like LIV 52.
Also start regular exercises which will help in the osteoporosis
as well a the liver problems.
I hope my advice has helped.