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I Feel Weird After Anesthesia: Symptom Navigator
Feeling off in the days after surgery or anaesthesia is incredibly common. Pick what you're noticing and get a clear explanation, how long it usually lasts, what helps, and the signs that mean you should call your team.
Choose the symptom that bothers you most. You can come back and pick another.
Frequently asked questions
Is it normal to feel strange for days after anaesthesia?
Yes. Sore throat, grogginess, mild nausea, shivering, odd dreams and feeling emotional are all common in the first day or two. Older adults may feel foggy a little longer. Most things settle on their own, but use the red flags below if something feels severe or is getting worse instead of better.
How long does anaesthesia stay in your system?
The drugs themselves usually clear within roughly 24 hours, which is why you're told not to drive, sign documents or drink alcohol for about a day. Tiredness and a foggy head can linger a bit longer, especially after a big operation or in older people.
I have a headache that's worse when I sit up and better lying down — should I worry?
A headache that is clearly worse sitting or standing and eases when you lie flat can be a post-dural-puncture headache after a spinal or epidural. It's not dangerous but can be miserable. Contact your anaesthetic or surgical team — simple measures help, and a small procedure called a blood patch often fixes it.
When should I call my surgical team instead of waiting it out?
Call urgently for trouble breathing, chest pain, a fever with shaking chills, a wound that's hot, red, swollen or leaking, calf pain or swelling, not passing urine, repeated vomiting, severe or worsening pain, or any symptom that frightens you. When in doubt, ring your team or local urgent care — that's what they're there for.