Hi Isak, having years of experience in the gym, I can tell with enough certainty that this is a very common injury. To be more accurate, you just damaged the rotator cuff! Nothing major, but as you said, it compromises your workout! 🙄 It's very annoying because there are not quick fixes on that! I will recommend to rest at the beginning and not Force the shoulder in any Way! But it will last long! And as other people said, do shoulder exercises, specially with elastic bands to make the rotator cuff stronger! But for now... Rest! Trust me, Otherwise it can get worse and take LONGER 😅 So annoying 😅