Hi Shade
Our apologies in not posting a reply to you sooner.
I can re-post your problem in the fitness forum for now, so you can
get support with this.
Are you drinking enough water? as you know, when you sweat
your body dehydrates, so if there isn't enough '(Hydroxide - H2o)' Water in your body, it will start taking the salt (sodium chloride - NaCI) as a substitute instead, to cool the skin, after all, that is the reason why we sweat, and why we need to drink plenty of water.
Please drink plenty of water when doing any sport, and especially when doing sports on a hot day...
Best regards
Ginger