Rather than attempting to diagnose yourself, consider the change as information worth mentioning to a healthcare professional.
## 4. Persistent Headaches
Headaches are incredibly common.
Most are not caused by something dangerous.
Dehydration, stress, poor sleep, eye strain, caffeine changes, muscle tension, and many other factors can trigger headaches.
However, a headache that is new, unusually severe, increasingly frequent, or significantly different from your normal pattern deserves attention.
Seek urgent medical care for a sudden, extremely severe headache—particularly if it occurs with neurological symptoms such as weakness, confusion, difficulty speaking, fainting, or vision changes.
The important lesson isn’t that every headache is dangerous.
It’s that **a major change in your usual headache pattern shouldn’t automatically be ignored**.
## 5. Unusual Shortness of Breath
