Hi,
its imperative you  visit your physician for what you consider the 
liver might not actually be a liver region. With 
hypertension, some patients evolving towards some kind of 
heart failure might have some liver distension and pain, but with a well controlled BP, its worth controlling. In your case, it shall be very unlikely, but you juts need to control.  However, a proper clinical examination, an abdominal 
ultrasound and liver function tests could help detect whether you really got a liver abnormality or not, or detect something else if it really does exists. Depending on the clinical evaluation of the physician, other causes of 
referred pain, which might not actually be coming from the liver or region described shall be excluded.
Propose you meet your internist for a proper evaluation.,
Thanks and hope this helps,
Luchuo, MD