Steering Hardening in Clutch

There is a problem in 2005 1.9D Partner that I have not been able to solve and understand for days, can anyone help? turns into truck steering wheel, I turn it with both hands. I don't know if it's related to the clutch or if the revs drop, but even when I'm on the road, when I press the clutch, the steering wheel gets hard, it would almost cause an accident when turning. A problem that has been around for 3 days, there was no problem before.

I checked the steering fluid, the level is normal

There is no abnormal noise from the steering wheel from the box< /div>