Question about having lymphoma? How bad it is it really?

As long as you're not experiencing any symptoms that are similar or the actual symptoms of Lymphoma, then you shouldn't be worried. Could just be a swelling. I had a similar problem a couple fo years ago, but it did settle after roughly 1 year. I experienced no pain, unless I agitated the swelling, i.e. touching it or moving it around. But I suggest you go see a doctor to get a full diagnosis.