Sunburn?

ca
Hey guys, so I know this is a weird question to ask but, how do you cute full body sunburn? I was at the beach yesterday with a bikini and made the stupid mistake of falling asleep😭😂🌞 everything is burnt except for my bikini areas. Now, I have these horrible chills that make my arms legs and even teeth shake. I got up this morning and felt really lightheaded. My vision got blurry. How on earth can just a sunburn cause all this? I've been drinking lots of water and putting aloe Vera on my skin, but what about the lightheadedness?