Girls hi ? It's night I went to the toilet and look at me, my right h…

Girls hi ? It's night I went to the toilet and look at me, my right hand is swollen, so much that I couldn't even gather it in a fist immediately. I was terrified. For two hours I sat on it, rubbed it with cold compresses and held it in cold water. Swelling subsided but not completely. I lay down again to sleep after some time, I get up again to the toilet, again like this ?Maybe someone had it too? What is it? ?