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I don't do so much those exercises because i feel pain in the lower back, but when i do, not much.. around 160kg deadlift for 3-4 reps and 100kg squat for 3-4 reps.. but i never do them.

can you post a video of you deadlift and squat with an empty bar?

I don't think so soon, but will try in future.

When are you are going to the gym?

Everyday, but i can't film everyday. Well, i'm not interested to do squats and deadlift, cause the pain is cronic, so.. :P

So you have cronic pain but you go to the gym? Does not make any sense. Does your back pain if you do a body weight squat?

No. My lower back is always at risk, that's why i don't do some exercise. i don't feel pain in normal life, but it can happen that sometimes a do something wrong for one second and i'm in the bed for 1 whole week. So i don't risk, i know which exercise to do :D