<s>[INST] I was rear ended 6 days ago. Heads been off..but the day after I started getting swelling in front of left ear in front of my tangus I believe its called. Its getting bigger and warm. Been very lightheaded and tired. Can't even go around a u-turn. Any ideals? [/INST] Greetings. I am glad that i can help you overcome your discomfort.My opinion after reading your query is that you probably had an "WHIPLASH" type Injury which you hadn't noticed. I just wanted to know the following:Do you have neck pain/shoulder pain/Upper back pain/ feel of Spasm of muscles in these regions? Having any ringing sound sensation in ear? Are your vision getting blurred? Are you feeling Dizzy/ a headache? It's surprise that you haven't been to any doctor past 6 days post Injury in spite of you knowing something unusual happening inside you? So sad & feel sorry.Swelling in front of Left ear in front of Tragus could be a fracture trauma,blood/fluid/Pus collection within the described area or any other condition.It's advisable to visit an ENT specialist & get examined.Take necessary investigation in order to identify the problem to avoid further deterioration & any complication.Note:Finally it's just a guidance. Not a definitive treatment as i haven't seen you personally. You've to realize that these are temporary remedies. We don't know what your exact condition is unless we see you personally.Consult your Doctor if you still feel uncomfortable in spite of knowing above possibility.Hope i guided you right & it helped. </s>