After an extremely busy weekend visiting family, I woke feeling slightly unwell. Usually if I overdo things I get flares of my symptoms: off-balance, tired, pain through most of my body, etc. But this day was different. By lunchtime, I was vomiting and had to lie down. I started getting slight chest pain periodically and had nausea and generally felt unwell. Not my usual thing. After about 3 hours on the bed, I decided we needed to call the ambulance. On their arrival, my blood pressure was dangerously high and I had a headache. Still had on and off chest pain. Off to the hospital. Bloods confirmed not cardiac but my BP took hours to come down to a reasonable level. Sent home with instructions to follow up with GP the next day. I'd be interested to hear if others have blood pressure issues when they're having a flare up.