If your eyes start watering because of being nervous, you need to calm down and make yourself relax so as to stop watering eyes. So, first, you take a deep breath. Close your eyes and image some good things to you. You can imagine whatever can make you happy and relax. And pay less attention to your current situation. I hope this will help you release from nervous, thus to stop eye tearing.
This happens to me sometimes. I think it's partly because I got nervous and forget to blink as much as I should. I didn't need glasses but I still spent $40 for fake, non-prescription glasses just to ease my watery eyes due to nervousness by using the lenses as barrier between me and my surroundings. Meantime, you need take care of your eyes and have more fruit and vegetables. Cassia and medlar tea is helpful. If your symptoms are worsening and affecting your day-to-day and social life, you should consider visiting your doctor or psychologist for a thorough evaluation.
Well, I will suggest you should go and see a doctor first, because it is difficult to comment on your symptoms without examining you and going ahead with further evaluation. If your symptoms are worsening and affecting your day-to-day and social life, you should consider visiting your doctor a thorough evaluation. Treatment as appropriate which is based on examination findings and investigation results would be taken to help you control the symptoms. So you should be in regular monitoring and follow-up with your treating doctor and report any symptoms immediately. Or it will make your situation more and more serious.