In gingivitis there are
swollen gums, bad breath, easily bleeding of the
gums during flossing or brushing and
gums may appear red-colored. Scurvy can lead to swollen bleeding gums, weakness, joint pains and muscle pains. In periodontitis there is soft tissue and bone deterioration with tender swollen gums. These are only few possibilities. For exact diagnosis and treatment a dental examination is necessary. Do keep me posted.
Best luck and take care!