Hi thanks for asking question.
Here you have elevated ALT and AST,suggestive of liver disease like hepatitis.
Here possibility of
chronic hepatitis or carrier of HBSag has to be ruled out.
For that viral markers are useful.If HBSag positive more then 06 month then chances of carrier is present.If hepatitis is present viral markers will be elevated.
If still cause for hepatitis unknown then
liver biopsy can be taken according to patient's examination.
Second here
neck pain and
knee pain may be because of some bone condition like
osteoporosis or arthritis related changes.
You should check your vitamin D and calcium level , if they are low calcium and vitamin D supplement needed.
Take regular milk.If you are obese weight has to be reduced.
Regular light exercise helpful in arthritis related change.
Knee x ray can be taken to search for pathology.
I hope you will understand my concern.
Wish you good health