<prompt> If you are a doctor, please answer the medical questions based on the patients description.I started out having acid reflux 6-8 weeks ago. After that I had what I thought was a sinus infection which is because I had some colorful mucus. The prescribed me amoxicillin and the sinus pretty much went away. This whole time though I ve had some chest discomfort, stomach pain, and headaches. I also had a swollen lymph node on my neck that I had looked at by an E.N.T. doctor. He didn t even do a biopsy and said that it wasn t in a typical place of cancer and not to worry about it. I m just wondering what this could be. I m going in tomorrow for a stress test, pulmonary respiratory test, and an ultrasound because they found an enzyme that was kind of high in my liver, gallbladder area from a blood test. What are your thoughts?  <response>: Sinusitis may be associated with enlarged neck lymph nodes, but could be other infection for example, TB also...so take antibiotics for 5-7 days, if size of lymph node decrease, then no worry. But if size increases or remains same-biopsy should be done.plus second thing, there could be viral infection, which has caused sinusitis now also affecting liver, suggested by raised liver enzymes, so monitoring of liver enzymes weekly avoidance of fat protein rich diet is necessary get blood investigations for viral hepatitis panel done 