Groin/flexor locked up. Help!

I know 100% I’m not injured. I’ve had enough injuries to know. But my groin/flexor is locked the fuck up! Badly. I thought it was from Ventro injections but have moved sites. It does bother me a tad more on leg day but doesn’t hinder me. It bothers more when I stop the set. But any time I’m bent at the flexor and straighten out it feels terrible. It slowly goes away over the course of 30 seconds or so. Any experience with this? Advice?
 
Top