What do I do?

Low key kinda freaking out about this. Just this Wednesday I experienced a ever so slight ringing noise in my ears, although it feels like I’m hearing it through my head. It’s high pitched but not ear piercing and relatively quiet. I only noticed it when no other sounds were going on. I can’t think of any hearing damage because I am very self conscious about how loud I keep my music. I did perform in a concert earlier that day but I’ve done that hundreds of times before without hearing fatigue. The only other thing I can think of a cause is recently getting a meningitis vaccine, although I highly doubt that has anything to do with it. The sound goes away seemingly by its own will, but so far has reliably come back in spurts. Sometimes for an hour or two or for seconds off and on. Sometimes slightly louder, and sometimes barely audible. Although always painfully annoying. I’ve found myself becoming highly sensitive to higher frequency noises, constantly questioning what I’m really hearing. Do I need to see a doctor? What course of action can I take to possibly resolve this or prevent it worsening?