I see:
You are driving slowly in the left lane and not overtaking other vehicles, which requires vehicles and a semi to pass you unsafely in the right lanes. You should be in one of the other two lanes.
You should NEVER USE YOUR FLASHERS unless there is an actual emergency. This creates confusion because the other drivers do not know if you are applying your brakes or signaling your turns.
You are driving slowly in the left lane and not overtaking other vehicles, which requires vehicles and a semi to pass you unsafely in the right lanes. You should be in one of the other two lanes.
You should NEVER USE YOUR FLASHERS unless there is an actual emergency. This creates confusion because the other drivers do not know if you are applying your brakes or signaling your turns.