My boyfriend grabs me?

so I have been with my boyfriend for almost 2 years. sometimes when we get into a big argument and there's yelling involved I try and leave for a little while. I grew up in an abusive home and I have been diagnosed with PTSD, so people yelling and slamming things around can give me a panic attack. whenever I try and leave, my boyfriend will grab me from behind or grab my arm and jerk me back around. is this considered abuse and is it a sign that he will get worse in the future? or is it a normal thing that I shouldn't worry about?
My boyfriend grabs me?
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