There was another guy who injured his pec recently. Had it looked at and it was a complete tendon tear off the bone… better than a muscle belly tear I guess.
If there is/was bruising and obvious deformity it’s probably a better safe than sorry kinda deal so I’d recommend getting it checked out by an orthopedist ASAP. Hopefully you get some good (relatively) news lel.
Once we know what we are dealing we’ll know where to go from there. 8 days post injury is still kinda the acute phase of the injury where we are looking to protect the injury and prevent further damage so doing shit to/with it or flexing it to feel the deformity is probs a bad idea lel.
Bit early in this case too but worth having a think about contributing factors to your injury e.g. bad luck, fatigue/programming, inadequate warm up, technique, AAS use, previous injury (and/or poor rehab), etc.
Good luck mane.