Help ?

So I’m pretty young just got into high school and lately my left hand feels weird sometimes and my left arm and leg & like my hands are shaky when I look at them and do something but if I don’t pay attention to them they don’t really shake but I slept on my left arm and ever since my arm was tingly and my right hand has been feeling weird none of this is happening to my right side just my left ever since I slept on my arm all day I’ve searched what could be happening-and the only thing that came up was pediatric ms and it’s not noticeable shaking only when I stop and stare I haven’t had any vision problems but my yesterday my left eye was burning in the corner near the end of the eye oh and I’ve had really bad diarrhea so like yeah any help this has all happened ever since I slept in my left arm nothing has happened on my right and earlier I could feel two of my fingers for like 2 minutes I’m really scared that I could b dying