Are you Right Handed? Right Eye Dominant? and are you shooting to the left?

If so, its your form. If you are a lefty and hitting right it is your form.
There are other things that could be form as well but, you usually are not able to hold and follow-thru when you first start shooting again and "throw" you arm outward, thus hitting left for Rt hander and right if a lefty.

Is this what's happening?