I'm a 15 year old healthy male, I'm about 5'10" and weigh 122 lbs. I've had a (slightly) swollen inguinal and two slightly swollen axillary lymph nodes (you cannot see them, but can feel them) for at least 2 years now, maybe longer. They have not grown in size since I first discovered them. They do not hurt or anything of that nature. I recently had blood work done and it all came back normal. I'm concerned that it is Lymphoma. If I had lymphoma, would something show up on my blood work (although I know that lymphoma cannot be diagnosed through blood work, I was wondering if there was a "if you don't have this level abnormal, it can't be lymphoma" kind of thing)