<human>: I am 20, male, 5' 7" and 155 pounds. I have had some knee pain for the past 7 weeks but it was mostly manageable (I could walk and everything just no exercise). 2 days ago however I woke up and my left knee was killing me. I couldn't take a step without excruciating pain and I couldn't even hop on my good leg because the jiggling would put me in extreme pain as well. I got crutches, an ace bandage and 5/325 hydrocodone twice a day after seeing the doctors 2 days ago. I have also been taking ibuprofen twice a day. 

On day one I was able to use my crutches without any pain to my bad knee as long as there was no pressure on it. Now on the start of day three I cannot even use crutches as the movement of my knee in the air causes extreme pain (like an explosion in my knee) even with the hydrocodone. 

I have an MRI on Saturday and an appointment on wednesday to look at the MRI but I am frustrated and confused as to what I am supposed to do before then. I live by myself in the dorms and now I can't even crutch to the elevator to get food. I apologize if this sounds whiney but I am extremely frustrated and I do not even know what is wrong with me until after the MRI. 

Any advice at all would be appreciated

Summarize the given text in a few sentences.
<bot>: Left knee pain. Extreme pain even by using crutches and barely swinging leg. Appointment in 5 days. What do I do in the meantime?