I had a small lump at the same spot under the tongue that burst and then after a few days I got this lump but this time is a little bigger since yesterday and it does not burst. I used to smoke before but I had quit for a while.. I smoked one cigarette around 2 weeks back but have stayed away from it since. I have dry cough since 2 days and yellowish phelgm in the morning only. Very slight stomach pain but no issues with bowels.. The lump has no pain and I can just feel it below my tongue generally. Kindly advice if it may be cancerous??