More than 50 walk-in locations

Sudden muscle pain may not be as sudden as you think. Built up tension and stress are the most common cause of muscle pain, followed by minor injuries or overuse (like carrying furniture or running too long). If none of those seem to apply, there are other conditions that cause sudden muscle pain, which we examine below.

Conditions With Symptoms of Muscle Painperson with sudden muscle pain

Muscle pain caused by strain, stress and overuse is easy to pinpoint, as it creates tension and pain in a specific group of muscles. However, there are other conditions associated with muscle pain that aren’t so obvious, including:


If it’s flu season and you start having muscle aches, especially if you have a low grade fever, get to a medical professional right away. Muscle aches are an onset symptom of the flu, a  contagious viral infection that causes severe muscle aches, fever, and respiratory problems . There are antiviral medications that treat the flu, but they are most effective when taken as early as possible.

Muscle Cramps

If you’ve ever been woken up in the middle of the night by a cramp in your calf or foot, you know how severe sudden muscle pain can be. Muscle cramps  happen for a number of reasons, including:

  • Being dehydrated
  • Having a  mineral deficiency
  • Pregnancy
  • Exposure to very cold water

Rocky Mountain Spotted Fever (RMSF)

If you’ve been bitten by a tick, it’s very important to have a blood test for Rocky Mountain Spotted Fever.  Muscle pain, fever, headache, vomiting, and sometimes a rash are the symptoms, but without early treatment, RMSF can develop into a severe and fatal illness. In most cases, a medical professional will prescribe antibiotics within the first five days of RMSF diagnosis.

Visit FastMed Urgent Care for Muscle Pain Relief

At FastMed Urgent Care, we deliver convenient, affordable, and fast care seven days a week, without an appointment.

At FastMed Urgent Care, our mission is to positively impact the lives of our patients and their families. Why waste time and money on a trip to the ER for sudden muscle pain? Find a FastMed near you!

fastmed clinic location



Center For Disease Control:

Sign up for email offers

Sign up to receive coupons, health tips, and more–directly to your inbox.