The liver biopsy suggests that there may be some damage secondary to congestive heart failure. If you think of the heart as a pump, and for some reason it isn't working well (i.e. in congestive heart failure), the subsequent backup can affect the liver.
Next steps would be to evaluate the heart - which can certainly cause shortness of breath. An echocardiogram would be the appropriate test.
Regarding aerobics and weights, I would discuss this with your personal physician to ensure it is safe if there is presence of any heart condition.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b
Have you ever been diagnosed or treated for hypertension,anemia,diabetes,or depression/anxiety? Also, do you take any herbal or sports supplements