I (OP) drink plenty of tea, never coffee. It has never crossed my mind that the caffeine in tea would cause it, I thought it was certain foods – bacon, especially smoked, Walkers crisps, Alpen.
I wake every day and have 2 mugs of tea, then, as I work in building, will have tea through the day, get home, kettle goes on for 2 more, so I get a pretty large intake through the day. The Site I’m on now has all the tea supplied, in a clear plastic case, I’ve been there 3 weeks. and saw them filling it up one day from a De-caf box, it then clicked that I had been taking very few Rennies that week. I bought De-caf for home use that day, and have not took any Rennies this week.
It seems I may have found my own trigger cause, so hopefully this will help someone else who, like me, didnt realise that caffeine could be the cause.
Side effects this week – a throbbing headache for 2 days – caffeine cold turkey?