At first I thought my spinning head and nausea were symptoms of a hangover. But could they be connected to a documentary I had made on Havana syndrome? Waking foggy-headed and with the room spinning on 26 December is surely not an uncommon condition. Who among us hasn’t felt the effects of overindulgence on Christmas Day? These were my immediate thoughts when I rose in such a state in my parents’ house in Dublin two years ago. An hour later, the room continued its relentless swirl, nausea was building and it was becoming hard to stand. So far, so Christmas hangover. I remained in bed and waited for things to blow over. They didn’t. Gradually, family members stuck their heads into my childhood bedroom and wondered if everything was OK. I could only say that I felt quite strange. Continue reading...