30% Drop in Peak Flow?

I'm currently running a peak flow which is 30% below my 'normal' level. I'm not sure if this is something to be concerned about? I don't feel particularly unwell just a little short of breath. Is it normal to have a fluctuation of 30% or is this is big drop?

Thanks

[angievere]

30% drop is quite high, if my son drops that much I take him to the doctor or at least speak to the duty doctor. You ought to get it checked in case it gets worse.

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30% Peak Flow drop

Yes, this is a large drop. You should either start or double up your steroid inhaler, and probably make an appointment to see your asth,a nurse or GP too.

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Thanks both of you. I'm not getting any worse but my peak flow hasn't improved yet so I will make an appointment. I'm already taking the max dose of Symbicort I think (400/12 two clicks twice daily) and singulair so I'm simply using ventolin to help.