Can a sprained ankle be responsible for the rest of my body falling apart?

Last week I twisted my ankle from accidentally stepping in a dip in my yard. It freaked me out at the time cuz I heard three consecutive cracking sounds. After doing some research, I found out that ligaments when torn make just as loud a sound as bones breaking. And everything else suggested it was just a sprain not a broken ankle. I iced and elevated it. It's much better now! The bruising has mostly gone and i can put quite a bit of my weight on it while hobbling around. While I was dealing with this though, I started to get this chill inside the core of my body that I couldn't shake. I have bundled myself up, drunk hot liquids, but I still feel really cold and parts of my body are like icicles. I have a sinus headache that won't go away and I am falling in and out of sleep. Is there something really wrong with me or is this normal??