The symptoms of lymphoma, simply put, are that some people feel a lump on their neck or in their armpit; it starts as a sudden appearance of a swelling that gets larger over time, sometimes not just one, but multiple lumps clustered together. This is indeed the most common symptom, where one can feel something on their neck, including under the jaw or the chin, noticing suddenly a nodule has formed, whether it's the size of a chicken egg or otherwise. That's one aspect. The second involves systemic symptoms, which primarily include fever, night sweats, and weight loss. These three symptoms are quite common.