I am 225, 5'9", muscular/huskie male. I did a 4.4 mile pretty steep incline hike up Mission Peak in Fremont, CA for the first time on a Sunday. On Monday my knee was feeling fine, on Tuesday there was a mild/medium pain, but later when I got home that day it flared up and I was in a lot of pain. Throughout the night from Tues night to Wed morning it hurt to extend it and it hurt to bend my leg. I took 800mg of ibuprofen to at least keep the swelling and pain down. I can walk on it, and keep it in a certain postition and i'll be okay, but full range of movement is not an option for me. Also, it's swollen to the size of a softball. Please advise ASAP