I used to have warm and sweaty hands. Since I picked up bouldering I realised everyone is using chalk but I hardly sweat in my hands (I still sweat). My hands felt colder, and I don’t feel thirsty that if I don’t drink enough water it triggers headache. Took me quite some time to associate the headache with dehydration. Thanks for the reply. I will try to get myself a check up
Just get the glaucoma check (I don't think that you can even necessarily get a Flammer syndrome diagnosis, it's not a disease). That's the condition that matters and if you don't run a formal (fast, cheap, painless) check you can miss a serious issue.
