I am on 20mg of fluoxetine a day and I have missed a dose for 36 hours. I now have nausea and severe headaches. This pattern has been going on for months and I am under investigation by gp for my symptoms but I have not mentioned the missing doses. The penny has just dropped that my symptoms appear 24 hours after missing a dose. Does anyone else have any experience of this? Or is it just coincidental. Thank you for reading