Severe knee pain

The last couple days I've been waking up with severe knee pain. It hurts so bad I just want to cry. When I'm sitting , standing , walking, laying down it just always hurts.

I cant seem to figure out why my knee is in such pain. But cant think of anything. Has this been a early pregnancy symptom for anybody?

Feel like this is a dumb question. But I've been so moody & now I'm having horrible pain in my knee so I just cant think of what it could be...

Thank you