I have had horrible pain too and at times can't take a deep breath.It comes and goes. It starts out super strong and I have been totally incapacitated for a day or two then slowly eases up. I have two 16 cent and 6 centimeters. It feels like a nerve is being pinched. I just got diagnosed last week. I thought it was from an injury to my neck and shoulder at work. After reading some cases on this site I know it's primary cause is the liver tumors.