Hello, Your entire system when under stress can experience swollen gums. I suspect you have have been exposed to a virus. A bacteria infection may also be a consideration. Try to increase your regular daily dental care routine which should include gentle brushing, flossing and vigorous rinsing. Warm salt water or the rinse of your choice will be acceptable. Keep well hydrated with a proper diet that includes balanced vitamins. As long as your oral symptoms do not worsen and you are feeling better, I wod not be concerned. If discomfort persists, Schefule a dental exam and see your physician for an exam and blood testing. Many systemic diseases have detrimental effects on your oral tissue. Antiinflammitory medication is recommended if you experience discomfort and to assist healing. I thank you for your inquiry and hope you feel better soon.