New Neck Lump Under Jawline, Soreness, Diarrhea: Possible Causes?

I understand you're concerned about a lump in your neck and some other symptoms. First, I want to emphasize that drinking alcohol at your age can be harmful to your health and development. It's important to avoid alcohol until you're of legal drinking age.

Swollen lymph nodes are often a sign that your body is fighting an infection. Common causes include:

• Viral infections (like common cold or flu)
• Bacterial infections
• Strep throat
• Mononucleosis

The diarrhea you experienced could be related to the same infection or possibly to the alcohol consumption.

Given your age and the presence of these symptoms, I strongly recommend seeing a doctor, preferably your pediatrician or family doctor. They can properly examine the lump, check for other symptoms, and determine if any tests are needed.

In the meantime:

• Rest and stay hydrated
• Avoid alcohol and other harmful substances
• Monitor for any changes in the lump or new symptoms

Remember, while swollen lymph nodes are often harmless, it's important to have them checked by a healthcare professional, especially when they persist. Your health and well-being are important, so please seek proper medical care.