Well I made it to 50 without a ride in an ambulance

That last hospital visit I went to they doubled my medicine one of which being a diuretic. I went to my local amusement park today. I made it from the parking lot to just inside the front gate before I started feeling dizzy and my heart started racing and I couldn't catch my breath. They called an ambulance for me, spent 2 hours in the hospital for them to come back and tell me I was dehydrated. If that's what dehydration feels like I can't understand how people go for days on end like that I could barely stand up.