Low bar squat has completely killed my bench
I taught I wasn't able to do a low bar squat because I don't have the flexibility to put the bar in the correct place but I found out that after 45min of stretching doing the Paul Horn stretch, stretching my minor pec, my lats and doing shoulder dislocations I am able to do a low bar squat with some pain (some, not no pain) in my left arm (I'm less flexible on my left arm for no reason at all since I don't have any injury). My grip is pretty wide to put the bar in the position; my little fingers are a hair away from the uprights, if I put them any closer I get a lot of pain. I have been doing that for seven squat session and I get less pain with each workout, that's why I think it is not a form issue. The problem is that it hurts like hell in the bench press and I'm not able to bench. At the begging it hurt both arms now is just left one, particularly behind the humerus about at the place of the insertion of the tricep.
Since I used to have pain in both arms and now just in a portion of my left arm when I bench, I wonder if this is normal and will go away eventually. Do you have any ideas?
31 years old
1.87m (6.1ft)
84Kg (185lbs)
Squat: 108Kg (238lbs)
Bench: 91Kg (200lbs)
Press: 60Kg (132lbs)
Deadlift: 165Kg (364lbs)
By the way all of my other lifts have also gone down since I started low bar squatting but the bench is the worst.