So I had a class today where we did about 90 minutes of various lunges and squats. After the class I didn't really stretch (I know, dumb) and I sat at a table for 2 hours right after. Now, my quads are so fatigued that my legs buckle and it's impossible to use my quads to stand back up. I have fallen like 10 times today and I'm scared about what it'll be like tomorrow. Is there anything I can do to help it? And what should I do to make it less hurtful tomorrow?