I have swollen left eyelid and very painful. no bumps. also left lymph node under chin is very tender and swollen? what could this be?

Could be a sty : It may be an early sty. It should be one eyelid not both that is swollen. If one the use of warm compresses four times a day for 5-10 minutes for a couple of days should help. If both lids are swollen it may be preseptal infection and you should see a doctor as you may need antibiotics. If the swelling doesn't resolve in a 2 days or you are running a fever see a doctor.