### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have been a heavy drug user since ago 16. I began using heroin and other drugs intravenously around age 20. At age 23, I learned that I had contracted Hepatitis C. I cleaned up for three years. During this time, I noticed a small lump at the bottom of my right rib cage that kind of could be pushed in with one s finger, and it would pop back into it s static position. I relapsed and stayed on maintenance opiates for another 2 years before getting totally strung out again at age 29. I had a horrible cold turkey withdrawal. I had an enlarged right abdomen, it was very sore, and I vomited and diarrhea d straight bile (a totally yellow liquid) for 3 days. It was hard on my body. After about 5 weeks of withdrawal, I was back to normal I had 10 months of sobriety and I relapsed again. I have now been using daily for 4 months. I intend on truly stopping for good this time but I am worried about my liver s status. I also want to know what that lump is thst I described. It has been hurting lately, especially when I drink or when I begin to withdrawal from lack of opiate use. What could be causing this abdominal discomfort and lump? Also, my urine is highly yellow. Not dark, just strongly colored. Thanks!

### output:

Hi! Good evening. I am Chat Doctor answering your query. If I were your doctor, I would advise you for some blood tests, like a CBC, an LFT, an ultrasound abdomen to rule out a liver enlargement, and an ECG to rule out any cardiac problem. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing Chat Doctor to clear doubts on your health problems. I wish you an early recovery. Chat Doctor.