My knees have started getting a bit achy since I started boot camp, but most recently, in the past 2 months. I notice it on the bike at times; especially on my Guru, where I tend to be riding in a slightly harder gear combo, or doing hard climbs. I hate this.
I think I need to go back to using the lightest bar (6 lbs.) while doing squats. It may be that when I started using the heavier bar, this started. I don't want to give up my classes as they really help me maintain my weight and I feel much stronger. But, when stuff interferes with riding, I get nervous.