Some issues I'm having

I think my feet are getting smaller. But actually. Recently I have noticed that when I'm rowing on an erg, especially at a high stroke rate, that my feet start to slide a little bit out of my Vibram FiveFingers (yea, I'm one of those guys that wears toe shoes). Then today, I was squatting and when I was getting close to max effort weights, I was sliding in my shoes again on my way up, making it a lot more difficult to squat. I have never heard of people's feet shrinking, at least this early in life. One of my friends suggested it might be from the fact that I'm exercising more than I used to, but that doesn't make sense to me. I mean I would run at least 30 miles a week last year, so I was still being incredibly active, I just wasn't weight training. Plus, I have high arches and since I'm in minimalist footwear, my arch should compress and lower thus lengthening my feet. I really have no idea what the cause of this is, but it is starting to freak me out. Plus, I really don't want to have to go and buy another pair of shoes while I have a perfectly good pair that I've had for a while now.

IF ANYONE KNOWS WHY MY FEET ARE SHRINKING, PLEASE INFORM ME!!!


Another thing that has been happening is that I've recently been stalling out a little bit on my squat, and to a certain extent, my deadlift as well. I am still increasing my capacity at submaximal loads, but I seem to be stalling out and not being able to increase or sometimes even maintain near maximal loads. For example, I recently did a squat workout of 6x2 at 95% of my 1RM, and I could only get through 3 sets before having to drop to 90%, and then even then, that was still quite tough, tougher than I thought it should have, especially because the 1RM is over a month old. I understand that the body needs to be stressed in order to adapt, and adaptation is the key when exercising, but I am starting to feel that I can't even stress my body as much as it needs to in order to adapt.
I'm not having as much trouble with my deadlift as with my squat, I really just have days where I'm feeling really good and can pull a lot, and then there are days where I can barely pull any weight (relatively) at all. For example, the other day, I set a new rep record at 82% of my 1RM, but I had trouble pulling at 86%, it's been really weird for me,

This has been incredibly frustrating for me because my focus is on gaining strength, and in 2/4 exercises that I focus on in strength, I'm barely able to see any gains. Even more frustrating is that on the overhead press and close grip bench press, I am seeing gains at a similar rate to when I first started lifting. That shouldn't be happening at all; when someone just starts lifting, there is so much inexperience that a person can make gains at every workout just because they are so behind where their body can be, but with me, I shouldn't be making gains like this, I mean I'm setting either a rep record or weight record every single workout. Yes, it is quite the confidence booster to keep me going, but I am almost in shock at the gains I'm making there, and then complete lack of gains in my squat and deadlift.

If anyone has any advice for how I can continue to increase my strength numbers since it seems I'm stalling out a little, that'd be great. I know that I don't have too much time left this semester (and then I'll be at camp, so I'm not exactly sure what I'll be able to do while I'm there) and then when I get back to school in the fall I'm going to commit to Wendler, but until then, the only thing I can think of is just increasing my capacity at submaximal loads and hope that can translate.