Regardless of your type of tumor, seizures are often one of the first signs of trouble. “Irritation from the tumor makes the [brain’s] neurons fire uncontrollably, and you get abnormal movements,” Schwartz says. Like tumors, seizures take many forms. You could experience whole-body convulsions, or jerking or flexing confined to one limb or one part of your face.
If you find yourself fumbling with keys, missing steps, or struggling with your balance, that sort of clumsiness in your arms, legs, or hands could be a sign of trouble, Schwartz says. Problems speaking, swallowing, or controlling your facial expressions are some of the ways clumsiness could show up in or around your head, he adds.
Like clumsiness, loosing feeling in a part of your body or face is something to keep an eye on, Schwartz says. Particularly if a tumor forms on the brain stem—the place where your brain connects with your spinal cord—you may experience loss of feeling or clumsy movements.
While it’s true that tumors can cause big shifts in a person’s behavior or personality, the types of radical transformations you sometimes hear about—or see in movies—are uncommon, Schwartz says. People with tumors are more likely to have issues remembering things, to feel confused, or to suffer less-dramatic thinking problems, he says.
Feeling queasy or sick to your stomach, especially if those symptoms are persistent and unexplained, could be a sign of a tumor, Schwartz says.
Blurry vision, double vision, and loss of vision are all associated with tumors, Schwartz says. You may also see floating spots or shapes—or what’s known as an “aura.”
Breathe easy. Despite what most of us would assume, headaches are often not an early indicator of a brain tumor. “They could come on with a very large tumor, but they’re not usually one of the first symptoms to emerge,” Schwartz says.