Millions of people roll up their sleeves for the flu shot to protect themselves from seasonal influenza every year. While the vaccine is safe and effective, some individuals report feeling unusually tired after getting it. If you have experienced this post-shot fatigue, you might be wondering if it’s normal and how long it lasts. Let’s break it down.
For a same-day flu shot, visit the walk-in clinic at AFC Urgent Care South Plainfield. Our team is available 7 days a week to provide flu vaccines for your whole family– no appointment necessary. Just walk-in today!
Does the Flu Shot Make You Tired?
Yes, the flu shot can make you feel tired, but not everyone experiences this side effect. Fatigue is one of the most commonly reported responses after vaccination, along with mild symptoms like arm soreness, headache, or low-grade fever. These effects are generally temporary and are a regular part of your immune system’s response.
It’s important to remember that the flu vaccine does not contain live flu viruses that can give you the flu. Instead, it helps your body build antibodies, sometimes leaving you feeling worn out for a short period.
Why Does the Flu Shot Make You Tired?
The feeling of tiredness after a flu shot is linked to your body’s immune response. When you get vaccinated, your immune system creates protective antibodies against influenza. This process involves releasing chemicals called cytokines, which can cause symptoms like muscle aches, mild fever, and fatigue.
Think of it as your body putting energy into training for a future fight. While it may feel uncomfortable, it’s a sign that your immune system is doing its job. External factors such as stress, lack of sleep, or dehydration may also intensify feelings of tiredness after vaccination.
How Long Does the Flu Shot Make You Tired?
For most people, flu shot fatigue is short-lived. Typically, tiredness lasts between 24 and 48 hours. Some may feel sluggish for up to three days, but anything beyond that is unusual. If you notice prolonged fatigue, it might be related to factors like your daily lifestyle, stress levels, or an unrelated illness. Staying hydrated, eating well, and getting adequate rest can help your body recover more quickly.
Most side effects fade on their own without any medical treatment. However, if fatigue lingers beyond a few days or comes with severe symptoms such as chest pain, difficulty breathing, or a high fever, it’s a good idea to seek medical advice.
Get a Same-Day Flu Shot at AFC Urgent Care South Plainfield Today
Feeling tired after the flu shot can be frustrating, but it’s usually a mild and temporary side effect that signals your body is building protection against the flu. If your fatigue feels excessive or you experience more serious symptoms, visiting urgent care is a smart choice. Trained professionals can evaluate your condition, rule out complications, and give you peace of mind to get back to feeling your best. Still need your annual flu shot? Visit AFC Urgent Care South Plainfield. Our center is committed to providing quality, convenient, and affordable urgent care to all patients in the South Plainfield, NJ area. We accept most health insurance plans and offer low-cost options for self-paying patients. If you have any additional questions about the services we provide, please contact us directly at (908) 222-3500.
