It sounds like a strain, were you kinda grinding them out, like gritting your teath/holding your breath? I did something similar to my neck when squatting a few months back. I now breath in through my nose on the down and release pressure out my mouth as I rise only holding for the initial part out of the hole.
I would wait a couple days before you see a physio, it will prb heal pretty quick, if not then go.
Otherwise, try a breathing technique like I do for squats, it may help a bit.