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Air feels like laughing gas before migraine

Several times I've gotten a symptom before or during the headache phase of a migraine where any air I breathe in feels like it's gas, particularly laughing gas which I've had many times for corticosteroid injections and dental procedures. Everyone else in the room always says everything seems normal to them. I can't find anything online about this; anyone here get it too?

  1. Hi Fennel,

    Thank you for your question and being part of the discussion forum! We're glad you're here.

    I've not experienced this, but that doesn't mean it can't happen. Many people with migraine experience auditory, olfactory and gustatory - hearing, smelling and taste - hallucinations. I have occasionally smelled smoke during aura, the second phase of a migraine attack, and hearing things that aren't really there.

    Here is information on the phases of a migraine attack that may help;

    Let me know if you have more questions,

    1. I often feel like air is heavier than it is during my pain phase. It feels similar to high humidity or like when you've been confined in a small room for a long time.
      It's not the same but it's similar.

      1. Hi LadyMedusa,

        Thank you for sharing your experience with us. Feeling this was could be part of prodrome, or the first phase of a migraine attack. I've not heard this before, but that certainly doesn't mean it can't happen.

        This article may be of interest to you as it discusses the four phases of a migraine attack:

        I hope that helps,

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