OK, so i checked your save and couldn't find anything that could cause your problem, but i think you can "fix" it.
In the stats you have "minus bonus" you can change it so that your stats go back to "normal"
This
View attachment 539584
to this
View attachment 539586
or you can change it to be even better if you want.
I checked the flags for hidden effect, i looked at the perks (it's strangely empty in my opinion, maybe i'm just too used to have a lot more perks at lvl 10) but nothing weird was checked.
If someone wants to take a look and see if they find anything, go ahead.