A few weeks ago I tested my max on the bench press. After hitting 275 (first lifetime PR in any lift in about 10 years!), I tried to do a rep a 285. On the concentric portion of the lift I felt a tightness in my left pec as if the muscle was going to tear (if you've torn a muscle before, you know how this feels). So, I just let the bar come down to my chest and had my spotter help me rack the bar.

Since testing my max, every time I bench -- even with light weight -- I feel like I am going to tear my pec. So, presumably I caused some damage when I tested my max. If I switch to a slightly narrower grip (pinkies on the knurling rather than middle fingers on the knurling), the pain goes away. So, I'm just benching with a narrow grip for now.

My question is, would it be better to continue to bench with a narrow grip until I can bench again with my usual grip without pain? Or, would it be better to just not bench (with any grip) for a few weeks?