24/7 Emergency Care. Our patients are first.
Feeling weak can be harmless—or it can be the first sign of something serious. If the weakness is sudden, severe, one-sided, or comes with confusion, chest symptoms, or breathing trouble, don’t wait.
Call 911 right now if weakness may be a stroke
Treat this as an emergency if symptoms are sudden and you notice any F.A.S.T. warning signs:
Face drooping
Arm weakness (especially on one side)
Speech trouble
If you see these signs, call 911 immediately.
Call 911 right now if weakness may be a heart attack
Weakness can sometimes be tied to a heart emergency—especially if it comes with:
Chest pain/pressure/discomfort
Shortness of breath
Cold sweat
Pain in the jaw, neck, back, arms, or shoulders
Nausea/vomiting, feeling light-headed, or faint
If these symptoms appear, call 911 immediately.
Go to the ER now for weakness with red-flags
Come in right away (or call 911 if severe) if weakness is accompanied by:
New confusion, fainting, or you feel like you may pass out
New trouble walking, loss of balance, or sudden vision changes
Severe headache, especially if it starts suddenly
Trouble breathing or you look/feel seriously ill
Ongoing vomiting/diarrhea with signs of dehydration (very dry mouth, minimal urination, can’t keep fluids down)
Kids get tired and “wiped out” with everyday illnesses—but urgent evaluation matters when your child:
Is hard to wake, unusually drowsy, or not acting right
Is too weak to stand/walk normally
Has trouble breathing
Has signs of dehydration (very dry mouth, sunken eyes, or not peeing like normal)
Has severe symptoms where you feel your child is not safe—call 911
If you’re on the fence: with kids, it’s better to be cautious.
“Weakness” isn’t one diagnosis—it’s a symptom. It can come from something simple (lack of sleep, mild viral illness), but it can also signal conditions that need urgent treatment, such as:
Stroke or TIA
Heart problems (including heart attack or abnormal rhythm)
Severe dehydration
Low blood sugar
Serious infection
Anemia or electrolyte problems
Medication reactions or intoxication
The risk goes up when weakness is sudden, one-sided, progressive, or paired with confusion, breathing problems, chest symptoms, or fainting.
ER vs. Urgent Care for Weakness
Choose the ER when weakness is:
Sudden, severe, worsening, or one-sided
Associated with speech/vision changes, confusion, fainting, or severe headache
Associated with chest discomfort, shortness of breath, sweating, or nausea
Happening in higher-risk situations (older age, diabetes, blood thinners, recent illness with dehydration, history of stroke/heart disease)
Consider primary care/urgent care only if weakness is mild, clearly explained (for example, after a poor night of sleep), improving, and there are no red flags.
What Post Oak ER Can Do for Weakness (Houston)
When weakness could be something serious, speed and diagnostics matter.
At Post Oak ER, evaluation may include:
Vital signs and a focused exam (including neurological checks when appropriate)
EKG/heart monitoring when symptoms could be cardiac-related
Lab testing to check for dehydration, infection, anemia, blood sugar issues, and more
Imaging on-site (CT / X-ray / ultrasound as appropriate)
IV fluids and IV medications for dehydration, nausea, pain control, and symptom support
Post Oak ER provides adult and pediatric emergency care and is a licensed freestanding emergency facility—walk in anytime, no appointment needed.
Whether you’re in Westchase, Midtown, or the Heights, getting to Post Oak ER is simple. We’re centrally located near major Houston routes like I‑610 and San Felipe — just a short drive from Memorial Park and River Oaks. Many patients reach us via Westheimer or Woodway Dr., depending on their neighborhood.
We accept most major insurance plans and also welcome self-pay patients with transparent, upfront pricing. Many Memorial-area patients visit us using Blue Cross, Aetna, Cigna, Humana, Molina, and United Healthcare.
Yes. We’re open 24 hours a day, 7 days a week. Our freestanding ER model is designed to minimize or eliminate wait times so you’re seen fast.
No. Walk in anytime. If it’s an emergency, come straight in or call ahead and we’ll be ready: 832-581-2277.
5018 San Felipe St, Houston, TX 77056 — near The Galleria/Uptown. Free, convenient parking right by the entrance.
Yes. Our board-certified emergency physicians care for all ages, including pediatric emergencies.
Chest pain, shortness of breath, severe headache/migraine, abdominal pain, injuries and fractures, cuts requiring stitches, high fever, dehydration, allergic reactions, asthma attacks, and more. If you believe it’s life-threatening, call 911.
Yes. We offer on-site CT scans, digital X-rays, and a full laboratory, so most tests and results are done during your visit.
Absolutely. We routinely see patients from Uptown, The Galleria, River Oaks, Tanglewood, and Memorial.
A photo ID, insurance card (if available), a list of medications/allergies, and any recent medical records you have.
We accept most major private insurance plans. Coverage varies by plan; our team will help verify benefits and discuss any out-of-pocket costs. Questions? Call 832-581-2277.
Urgent care handles minor illnesses/injuries. ERs have advanced imaging, lab, medications, and emergency physicians for time-sensitive or severe conditions (e.g., chest pain, severe abdominal pain, serious injury, difficulty breathing).
Yes. If inpatient care or surgery is required, we coordinate a direct transfer to the appropriate hospital.
Times vary by condition and testing, but our no-wait intake and on-site diagnostics help you get answers and treatment as quickly as possible.