About a Month ago when me and my relatives were at a fountain. i twist/feel wrong on my ankle this was my left leg. and it seemed to have hurt my back so i was swore for a few weeks and i was really thirst and my mom said since you ve been sleeping most of the days your probably dehydrated. so from then i tried to at least get up a few times just to drink water and pain medicine and lay down. well that lasted for at least 3weeks or less and i kept to my normal routine and i started to feel much better. Well a few days ago the ankle i sprained started hurting and it felt like there was a little ball of swelling. so i rested most of the day and the next day my ankle and the swelling were gone but on my left leg my knee was hurting and on my right leg my ankle was hurting and there was a little lump of swelling. so i rested drank water and slept in. the next day on my right leg where my thigh is near my joint has a swollen lump. its like when someone punches you in the cheek and it begins to swell, well that s what its like. my joints hurt a little in my knees and where my thigh joints are. and just today i seemed to have diarrhea. i only had one Bowel Movement today and lately I ve only been peeing, since i haven t been eating solids only drinking liquids and I ve been eating watermelon. My mom has a doctor appointment planned but its not till sep22 she was trying to make it closer but since were new its farther away. please help i a little worried and so is my mom.