Increased lymph nodes, is this caused by enteritis?

Patient's question:

Hypotension, sinus arrhythmia, insufficient blood supply to the brain, high white blood cell count in the body, elevated lymphocytes, higher than normal. A few days ago, I suddenly fainted, but I was supported by someone when I fell. I've been dizzy for these past few days. The doctor said I shouldn't engage in strenuous exercise. Today, when I ran 5 laps, I experienced chest pain and pale lips. However, I have a tennis exam for my middle school entrance next year, and I'm not sure if it will interfere.
Help needed: I hope a doctor can help explain this. I feel constantly anxious, thinking that the increase in lymphocytes isn't caused by enteritis.

Doctor's answer:

According to your description of the condition, it is considered to be dizziness caused by low blood pressure, an increase in lymphocytes, and an increase in white blood cells, which may be due to inflammation and other factors. You can take oral antibacterial and anti-inflammatory drugs, enhance dietary management, eat more light and easily digestible foods, avoid spicy, irritating, and extremely cold foods, and pay attention to rest to reduce psychological stress. The above suggestions are for the question "An increase in lymphocytes is not caused by enteritis." I hope it helps you, and wish you good health!

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