I had a VERY hot bath - I could kneel in it only for 5 minues then had
to get out - legs a bright criimson - but tt helped the aches anf pains from gardening, I then put cold water in and lay for an hout
My drugs last 4 hours unless I am very tired but that night I was a zombie after 3 hours and had to be helped out the bath (I started my weight training about 3 years ago to ensure I always could easily lift myself out of the bath)
The only other thought I had was I used a particularly strong midge repellant because they were hungry that night - but that seems an unlikely cause?