(HealthDay News) -- Significant stress can lead to health problems or exacerbate those you already have, the American Academy of Family Physicians says.

Do you always realize when you're under stress? The academy notes these possible warning signs:

• Anxiety.
• Back pain or headache.
• Stomach upset, diarrhea or constipation.
• Feeling tired much of the time.
• Difficulty sleeping.
• Feeling short of breath.
• High blood pressure.
• Stiffness in the jaw or neck.
• Weight loss or gain.