I have recently had a cancer diagnosis and am undergoing treatment. I have had a few sessions and am finding the water to be colder than I usually do despite a well fitting winter 5/4 hooded wetsuit.

Can anyone advise if they have used thermal shorts/rash vests under such a suit? The water here is around 12’c at the moment - it will drop down to 7’c in deep winter so I am trying to get ahead of the game. Part of me thinks it could be counterproductive as they’ll be more water in the suit so it would be great if someone could advise.

Already have 5mm gloves and boots but am likely going to bump the boots to 7mm.

Thanks a lot

Edit: could also consider a 6/4 suit but thought I would explore this option first