Ways Your Body May Be Telling You Something’s Wrong

33. Swollen lymph nodes

Swelling in your lymph nodes, especially if it lasts for a long time, could be a sign of an infection or, in rare cases, a more serious condition like lymphoma.

34. Difficulty focusing

Trouble concentrating might be linked to stress, sleep deprivation, or a nutritional deficiency, such as low iron or omega-3 levels.