I drink plenty of water yet i do not sweat much when i exercise. could this be a sign that something isn't working properly?

Not everyone is the.: ...same. U probably have high unnoticeable sweating. Don't let this keep U away from proper hydration. A good way 2 know if U R Under hydrated is 2 watch the color of Ur urine. Someone who is dehydrated will have deeply yellow colored urine. A well hydrated person will have almost clear urine. Insensate water loss is seen in heat, ,low humidity, & with a wind or breeze.