Hi guys, my length and girth seems to be smaller lately, and also my erections seems to be weaker

I'm not that worried about, lenght is about 0.5" smaller and girth I would say, like 0.3"

I've been having some hard times lately, feeling down, a lot of stress at workplace, got a lot of weight, and... not excercising... money is low, etc

Usually I'm not in the mood to even mansturbate, but, when I am I have to, almost, like force my dick to get hard and erection is weak, I mean is hard, but not that strong

This month, I wait a week and a half to mansturbate and that day I was harder than any other day (not my most, but better than usual) and I was a bit larger, like 0.25" but yet, not my usual size

So, I am like 6" - 6.2" BPEL, but these days I'm about 5.5"

It could be stress?