I was wondering if one of my medications could have this as a side effect.

It is possible for certain medications to have side effects that can affect blood pressure or dehydration levels. It is important to stay well-hydrated during physical activities to prevent a drop in blood pressure, especially in hot weather. It is also recommended to gradually increase exercise intensity at the gym and consider replacing water with sports drinks that can help with hydration. If you are not diabetic, sports drinks like Gatorade can be more effective at keeping you hydrated than water.