I'm feeling worried because I've been experiencing chest discomfort and shortness of breath for the past three months. I recently got my blood report back, and it shows my lymphocytes level is at 55. Should I be concerned about that? Also, my ECG, echocardiogram, PFT, and chest X-rays came back normal. Can you help me understand what's going on?

Based on your symptoms and normal test results, a high percentage of lymphocytes in the blood may indicate an underlying infection or inflammation. However, since your other tests are normal, it is less likely to be related to a serious heart or lung condition. To address the chest discomfort and shortness of breath, you can try taking over-the-counter antacids for possible acid reflux or GERD symptoms. Additionally, you can take a short course of antibiotics like Azithromycin 500mg once daily for 3 days to cover any potential infection. If your symptoms persist or worsen, it is advisable to follow up with your healthcare provider for further evaluation and management.