Dr Wylie advises speaking to your GP if you think you may have PMDD, saying: “Symptoms attributed to PMDD can sometimes have other causes. Persistent fatigue, headaches, changes in mood, sleep disturbance or palpitations, for example, may warrant assessment rather than being assumed to be hormonal.
Article source: https://www.huffingtonpost.co.uk/entry/antihistamines-for-pmdd-gp-explains-trend_uk_6a9adde1e4b0e51a2d929c90